Expressive Taxonomy Extraction

Method and Parameters

We followed the method described in the paper What is the schema of your knowledge graph?: leveraging knowledge graph embeddings and clustering for expressive taxonomy learning with the following parameters:

Parameter Value Description
Score threshold 𝛿 0.9 Minimum partition score for labelling a cluster with an axiom
Sampling size n 1,000 Number of entities sampled in each clustering step
Clustering steps 350 Maximum number of clustering steps
Nax 10 Number of candidate axioms kept at the end of each improvement step
max_steps 2 Number of improvement steps for each cluster
min_gain 0.08 Minimum partition gain for the improvement step
Max tree depth D 4 At the end of the clustering step, clusters with a depth greater than D are discarded

As mentioned in section 4.3 of the paper, we decreased the threshold 𝛿 over time, instead of using a fixed value. Each time the search queue was empty, we decreased 𝛿 by 0.05, until reaching the maximum number of clustering steps. We find that using a decreasing threshold yields better results than a fixed one. With a high fixed threshold, many axioms that are uncertain yet true are discarded, resulting in a low recall. Conversely, a low fixed threshold gives too many false axioms, i.e. a low precision.

Once these 350 clustering steps were done, we ran 100 extra clustering steps, identical to the previous ones except for three parameters:

Searching deeper in the tree (larger value for D) with lower expectations (lower value for 𝛿) allows us to identify classes that would have otherwise been discarded. These final steps thus helps adding rare or ill-defined classes to the expressive taxonomy.

Result

Some classes, in blue, have extra axioms attached to them (they can be shown by hovering the class names): it indicates that the corresponding cluster had several "good" axioms (within 90% of the best score).
          ┌
...
          │            ┌
dbo:ProgrammingLanguage
          ├
dbo:Language
          │            └
∃dbo:spokenIn.dbo:Place
          │                    ┌
...
          │                    ├
dbo:SoccerClubSeason
∃dbo:team.dbo:Agent
∃dbo:manager.dbo:Person
          │                    │                    └
dbo:SportsSeason
          ├
dbo:SportsTeamSeason
          │                    │                                ┌
...
          │                    ├
dbo:NationalFootballLeagueSeason
∃dbo:coach.dbo:Person∨dbo:NationalFootballLeagueSeason
∃dbo:coach.dbo:Person∨∃dbo:year.{xsd:gYear}
∃dbo:coach.dbo:Person∨∃dbo:predecessor.dbo:FootballLeagueSeason
∃dbo:coach.dbo:Person∨∃dbo:predecessor.dbo:NationalFootballLeagueSeason
∃dbo:coach.dbo:Person∨∃dbo:predecessor.dbo:SportsTeamSeason
          │                    │                                └
∃dbo:coach.dbo:Agent
∃dbo:coach.dbo:Person
          │                    │                                                     └
dbo:FootballLeagueSeason
          │                    │                  ┌
...
          │                    └
dbo:NCAATeamSeason
∃dbo:coach.dbo:Agent
          │                                       └
∃rdfs:seeAlso.dbo:SportsSeason
∃rdfs:seeAlso.dbo:NCAATeamSeason
∃rdfs:seeAlso.dbo:SportsTeamSeason
          │          ┌
∃dbo:displacement.{xsd:double}
∃dbo:configuration.{http://dbpedia.org/datatype/engineConfiguration}
          │          ├
∃dbo:powerOutput.{xsd:double}
          │          │                                                                  ┌
...
          │          ├
∃dbo:operatingSystem.dbo:Work∨∃dbo:productionStartYear.{xsd:gYear}
∃dbo:operatingSystem.dbo:Software∨∃dbo:productionStartYear.{xsd:gYear}
∃dbo:operatingSystem.dbo:Work∨∃dbo:successor.dbo:Device
∃dbo:operatingSystem.dbo:Software∨∃dbo:successor.dbo:Device
∃dbo:successor.dbo:Device∨∃dbo:operatingSystem.dbo:Work
          │          │                                                                  └
dbo:Engine
          ├
dbo:Device
          │          │                                        ┌
dbo:InformationAppliance
          │          │                                        ├
dbo:Weapon
          │          └
dbo:Weapon∨∃dbo:manufacturer.dbo:Company
dbo:Weapon∨∃dbo:manufacturer.dbo:Organisation
dbo:Weapon∨∃dbo:manufacturer.dbo:Agent
dbo:Weapon∨dbo:InformationAppliance
∃dbo:weight.{xsd:double}∨dbo:Weapon
          │                                                   ├
...
          │                                                   └
dbo:AutomobileEngine
          │             ┌
dbo:Grape
          │             ├
dbo:GreenAlga
          │             ├
dbo:CultivatedVariety
          │             ├
dbo:Ginkgo
          │             ├
dbo:Moss
          │             ├
dbo:Fern
          ├
dbo:Eukaryote
          │             ├
dbo:Fungus
          │             ├
dbo:Plant
          │             ├
dbo:Gnetophytes
          │             ├
dbo:Conifer
          │             ├
dbo:Cycad
          │             ├
dbo:ClubMoss
          │             └
dbo:FloweringPlant
          │          ┌
...
          │          ├
dbo:Insect
∃dbo:phylum.{dbr:Arthropod}
          │          ├
dbo:RaceHorse
          │          │             └
dbo:Horse
          ├
dbo:Animal
          │          │                                                     ┌
dbo:Fish
          │          │                                                     ├
dbo:Mammal
          │          │                                                     ├
dbo:Mollusca
          │          │                                                     ├
dbo:Crustacean
          │          └
∃dbo:kingdom.{dbr:Animal}∨∃dbo:kingdom.{dbr:Animalia}
∃dbo:kingdom.{dbr:Animal}∨∃dbo:genus.dbo:Eukaryote
∃dbo:kingdom.{dbr:Animal}∨∃dbo:genus.dbo:Species
∃dbo:kingdom.{dbr:Animal}∨∃dbo:genus.dbo:Animal
∃dbo:genus.dbo:Eukaryote∨∃dbo:kingdom.{dbr:Animal}
          │                                                                ├
dbo:Species
          │                                                                ├
dbo:Amphibian
          │                                                                ├
dbo:Bird
          │                                                                ├
dbo:Reptile
          │                                                                └
dbo:Arachnid
          │                        ┌
dbo:Motorcycle
          │                        ├
dbo:Locomotive
∃dbo:activeYearsEndYear.{xsd:gYear}
          │                        ├
...
          │                        ├
dbo:Automobile
∃dbo:productionEndYear.{xsd:gYear}∨∃dbo:manufacturer.dbo:Organisation
∃dbo:productionEndYear.{xsd:gYear}∨∃dbo:manufacturer.dbo:Agent
∃dbo:productionStartYear.{xsd:gYear}
∃dbo:productionEndYear.{xsd:gYear}∨∃dbo:productionStartYear.{xsd:gYear}
∃dbo:productionEndYear.{xsd:gYear}∨∃dbo:transmission.{STRING}
          │                        ├
dbo:SpaceStation
          ├
dbo:MeanOfTransportation
          │                        │                     ┌
dbo:Ship
          │                        ├
dbo:Ship∨dbo:Aircraft
∃dbo:shipBeam.{xsd:double}∨dbo:Aircraft
∃dbo:status.{STRING}∨dbo:Aircraft
          │                        │                     └
dbo:Aircraft
          │                        │         ┌
...
          │                        ├
dbo:Train
∃dbo:capacity.{xsd:nonNegativeInteger}∨∃dbo:numberBuilt.{xsd:nonNegativeInteger}
∃dbo:numberBuilt.{xsd:nonNegativeInteger}
          │                        │         └
∃dbo:weight.{xsd:double}∨∃dbo:capacity.{xsd:nonNegativeInteger}
∃dbo:capacity.{xsd:nonNegativeInteger}
          │                        │                                                                ┌
dbo:Rocket
          │                        └
∃dbo:totalLaunches.{xsd:nonNegativeInteger}∨∃dbo:status.{STRING}
∃dbo:status.{STRING}
∃dbo:totalLaunches.{xsd:nonNegativeInteger}∨dbo:Rocket
∃dbo:totalLaunches.{xsd:nonNegativeInteger}∨∃dbo:diameter.{xsd:double}
∃dbo:totalLaunches.{xsd:nonNegativeInteger}∨∃dbo:mass.{xsd:double}
∃dbo:totalLaunches.{xsd:nonNegativeInteger}∨∃dbo:countryOrigin.dbo:Location
          │                                                                                         └
dbo:SpaceShuttle
          │                  ┌
∃dbo:timeZone.{dbr:Eastern_European_Summer_Time}∨∃dbo:isPartOf.dbo:Settlement
∃dbo:timeZone.{dbr:Eastern_European_Time}∨∃dbo:isPartOf.dbo:Settlement
∃dbo:isPartOf.dbo:Settlement
∃dbo:elevation.{xsd:double}∨∃dbo:isPartOf.dbo:Settlement
          │                  ├
∃dbo:areaCode.{STRING}∨∃dbo:populationDensity.{xsd:double}
∃dbo:areaCode.{STRING}∨∃dbo:country.{dbr:United_States}
∃dbo:areaCode.{STRING}∨∃dbo:elevation.{xsd:double}
∃dbo:elevation.{xsd:double}∨∃dbo:areaCode.{STRING}
∃dbo:areaCode.{STRING}∨∃dbo:isPartOf.dbo:Region
          │                  ├
dbo:Continent
          │                  ├
∃dbo:postalCode.{STRING}∨∃dbo:country.{dbr:United_States}
∃dbo:areaCode.{STRING}∨∃dbo:country.{dbr:United_States}
∃dbo:areaCode.{STRING}∨∃dbo:leaderTitle.{LABEL:en}
∃dbo:areaCode.{STRING}∨∃dbo:postalCode.{STRING}
∃dbo:elevation.{xsd:double}∨∃dbo:postalCode.{STRING}
          │                  ├
...
          ├
dbo:PopulatedPlace
          │                  │                                                                ┌
...
          │                  │                                                                ├
dbo:Diocese
          │                  │                                                                ├
dbo:City
          │                  │                                                                ├
dbo:Town
          │                  └
∃dbo:timeZone.{dbr:Iran_Standard_Time}∨∃dbo:country.{dbr:Poland}
∃dbo:timeZone.{dbr:Iran_Standard_Time}∨∃dbo:type.{dbr:Village}
∃dbo:isPartOf.dbo:Settlement∧dbo:Village
∃dbo:timeZone.{dbr:Iran_Standard_Time}∨dbo:Village
          │                                                                                   │           ┌
∃dbo:country.{dbr:Poland}
∃dbo:type.{dbr:Village}
          │                                                                                   │           ├
∃dbo:timeZone.{dbr:Iran_Daylight_Time}
∃dbo:country.{dbr:Iran}
∃dbo:populationTotal.{xsd:nonNegativeInteger}∧∃dbo:timeZone.{dbr:Iran_Daylight_Time}
∃dbo:populationTotal.{xsd:nonNegativeInteger}∧∃dbo:country.{dbr:Iran}
          │                                                                                   │           ├
∃dbo:type.{dbr:Village}
∃dbo:country.dbo:PopulatedPlace∧∃dbo:type.{dbr:Village}
          │                                                                                   └
dbo:Village
          │                                                                                               ├
...
          │                                                                                               ├
∃dbo:utcOffset.{STRING}
∃dbo:timeZone.{dbr:Iran_Daylight_Time}
∃dbo:country.{dbr:Iran}
          │                                                                                               └
∃dbo:timeZone.{dbr:Iran_Standard_Time}
∃dbo:timeZone.{dbr:Iran_Daylight_Time}
∃dbo:country.{dbr:Iran}
          │        ┌
dbo:Film∨dbo:TelevisionShow
∃dbo:runtime.{xsd:double}∨dbo:Film
dbo:Film∨∃dbo:runtime.{xsd:double}
∃dbo:runtime.{xsd:double}∨∃dbo:starring.dbo:Person
∃dbo:starring.dbo:Person∨∃dbo:runtime.{xsd:double}
          │        ├
...
          │        ├
dbo:RadioProgram∨∃dbo:numberOfEpisodes.{xsd:nonNegativeInteger}
dbo:RadioProgram∨dbo:TelevisionSeason
∃dbo:numberOfEpisodes.{xsd:nonNegativeInteger}∨dbo:RadioProgram
dbo:TelevisionSeason∨dbo:RadioProgram
dbo:RadioProgram∨∃dbo:firstAirDate.{xsd:date}
          │        │                                             ┌
...
          │        ├
∃dbo:firstAirDate.{xsd:date}∨dbo:RadioProgram
∃dbo:numberOfEpisodes.{xsd:nonNegativeInteger}∨dbo:RadioProgram
dbo:TelevisionSeason∨dbo:RadioProgram
          │        │                                             └
dbo:TelevisionSeason
          │        │                     ┌
dbo:BiologicalDatabase
          │        ├
∃dbo:title.{LABEL:en}
          │        │                     └
dbo:Database
          │        │           ┌
∃dbo:author.dbo:Person
∃dbo:museum.dbo:Place
∃dbo:museum.dbo:Location
          │        ├
dbo:Artwork
∃dbo:museum.dbo:Location∨dbo:Artwork
          │        │           └
...
          │        │           ┌
...
          │        ├
dbo:Website
∃dbo:language.dbo:Language∨dbo:Website
          │        │           ├
∃dbo:language.dbo:Language
          │        │           └
∃dbo:author.dbo:Agent∨∃dbo:owner.dbo:Agent
∃dbo:owner.dbo:Agent
          │        │               ┌
dbo:Single
          │        │               ├
dbo:ClassicalMusicComposition
          │        ├
dbo:MusicalWork
∃dbo:genre.dbo:Genre∨dbo:MusicalWork
∃dbo:genre.dbo:TopicalConcept∨dbo:MusicalWork
∃dbo:genre.dbo:MusicGenre∨dbo:Album
∃dbo:genre.dbo:Genre∨dbo:Album
          │        │               ├
dbo:Musical
          │        │               └
dbo:ArtistDiscography
          │        │                                     ┌
∃dbo:producer.dbo:Person∨∃dbo:starring.dbo:Person
∃dbo:producer.dbo:Person∨∃dbo:writer.dbo:Person
∃dbo:starring.dbo:Person
          │        │                                     ├
∃dbo:firstAirDate.{xsd:date}
∃dbo:numberOfEpisodes.{xsd:nonNegativeInteger}
          │        ├
dbo:TelevisionSeason∨dbo:RadioProgram
∃dbo:firstAirDate.{xsd:date}∨dbo:RadioProgram
∃dbo:numberOfEpisodes.{xsd:nonNegativeInteger}∨dbo:RadioProgram
dbo:TelevisionSeason∨∃dbo:starring.dbo:Agent
dbo:TelevisionSeason∨∃dbo:starring.dbo:Person
          │        │                                     ├
dbo:RadioProgram
∃dbo:starring.dbo:Person∨dbo:RadioProgram
          │        │                                     └
...
          │        │                      ┌
dbo:Document
          │        │                      ├
dbo:PersonFunction
          │        ├
∃dbo:filename.{STRING}
          │        │                      ├
dbo:TimePeriod
          │        │                      └
dbo:Sound
          │        │                                 ┌
dbo:TelevisionEpisode
∃dbo:releaseDate.{xsd:date}
          │        ├
dbo:TelevisionEpisode∨dbo:Cartoon
∃dbo:director.dbo:Person∨dbo:TelevisionEpisode
dbo:TelevisionEpisode∨∃dbo:director.dbo:Person
∃dbo:series.dbo:Work∨dbo:Cartoon
∃dbo:director.dbo:Person∨∃dbo:previousWork.dbo:Work
          │        │                                 │           ┌
dbo:Anime
∃dbo:network.dbo:Agent∨dbo:Anime
          │        │                                 │           ├
...
          │        │                                 └
dbo:Cartoon
dbo:Anime∨dbo:Cartoon
dbo:HollywoodCartoon∨dbo:Anime
dbo:HollywoodCartoon∨dbo:Cartoon
dbo:Anime∨∃dbo:animator.dbo:Person
          │        │                                             │                    ┌
∃dbo:imdbId.{STRING}
∃dbo:producer.{dbr:Leon_Schlesinger}∨∃dbo:imdbId.{STRING}
∃dbo:series.{dbr:Merrie_Melodies}∨∃dbo:imdbId.{STRING}
          │        │                                             └
dbo:HollywoodCartoon
∃dbo:animator.dbo:Person∨∃dbo:distributor.dbo:Organisation
∃dbo:animator.dbo:Person∨∃dbo:distributor.dbo:Agent
∃dbo:animator.dbo:Person∨∃dbo:producer.dbo:Person
∃dbo:producer.dbo:Person
          │        │                                                                  └
...
          ├
dbo:Work
          │        │                                         ┌
...
          │        │                                         ├
∃dbo:latestReleaseVersion.{STRING}∨∃dbo:operatingSystem.dbo:Work
∃dbo:latestReleaseVersion.{STRING}∨∃dbo:operatingSystem.dbo:Software
∃dbo:programmingLanguage.dbo:Language∨∃dbo:latestReleaseVersion.{STRING}
∃dbo:programmingLanguage.dbo:ProgrammingLanguage∨∃dbo:latestReleaseVersion.{STRING}
∃dbo:latestReleaseVersion.{STRING}
          │        │                            ┌
dbo:Software
∃dbo:developer.dbo:Agent∨dbo:Software
          │        │                            │            └
∃dbo:computingPlatform.dbo:InformationAppliance∨dbo:VideoGame
∃dbo:computingPlatform.dbo:Device∨dbo:VideoGame
∃dbo:computingPlatform.dbo:InformationAppliance∨∃dbo:publisher.dbo:Agent
∃dbo:computingPlatform.dbo:InformationAppliance∨∃dbo:publisher.dbo:Company
∃dbo:computingPlatform.dbo:InformationAppliance∨∃dbo:publisher.dbo:Organisation
          │        │                            │                                                                          └
dbo:VideoGame
          │        ├
dbo:WrittenWork∨dbo:Software
          │        │                            │               ┌
dbo:Play
∃dbo:premiereDate.{xsd:date}∨dbo:Play
          │        │                            │               ├
∃dbo:country.dbo:Place
∃dbo:language.dbo:Language
          │        │                            │               ├
...
          │        │                            │               ├
dbo:Poem
          │        │                            │               │                         ┌
dbo:Magazine
          │        │                            │               ├
∃dbo:country.dbo:Location
∃dbo:country.dbo:Place
∃dbo:language.dbo:Language
          │        │                            │               │                         └
...
          │        │                            └
dbo:WrittenWork
∃dbo:author.dbo:Person∨dbo:WrittenWork
dbo:Book∨dbo:PeriodicalLiterature
∃dbo:author.dbo:Person∨dbo:PeriodicalLiterature
          │        │                                            │                  ┌
∃dbo:numberOfPages.{xsd:positiveInteger}∨∃dce:publisher.{STRING}
∃dce:publisher.{STRING}
∃dbo:isbn.{STRING}
∃dbo:numberOfPages.{xsd:positiveInteger}
          │        │                                            │                  ├
...
          │        │                                            │                  ├
dbo:Comic
          │        │                                            ├
dbo:Book∨dbo:Comic
dbo:Book∨dbo:Manga
∃dbo:author.dbo:Person∨dbo:Comic
∃dce:publisher.{STRING}∨dbo:Comic
dbo:Book∨∃dbo:numberOfVolumes.{xsd:nonNegativeInteger}
          │        │                                            │                  │        ┌
∃dbo:country.dbo:PopulatedPlace∨∃dbo:language.dbo:Language
∃dbo:country.dbo:Location∨∃dbo:language.dbo:Language
∃dbo:country.dbo:Place∨∃dbo:language.dbo:Language
          │        │                                            │                  └
dbo:Book
∃dbo:isbn.{STRING}∨dbo:Book
∃dbo:isbn.{STRING}∨∃dce:publisher.{STRING}
          │        │                                            │                           └
...
          │        │                                            │                        ┌
dbo:AcademicJournal
∃dbo:frequencyOfPublication.{STRING}
          │        │                                            │                        ├
...
          │        │                                            └
dbo:PeriodicalLiterature
dbo:Newspaper∨dbo:PeriodicalLiterature
∃dbo:issn.{STRING}∨dbo:Newspaper
dbo:Newspaper∨∃dbo:issn.{STRING}
          │        │                                                                     ├
∃dbo:firstPublicationYear.{xsd:gYear}
∃dbo:frequencyOfPublication.{STRING}
∃dbo:issn.{STRING}
          │        │                                                                     └
dbo:Newspaper∨dbo:Magazine
dbo:Magazine∨dbo:Newspaper
dbo:Magazine∨∃dbo:headquarter.dbo:PopulatedPlace
dbo:Magazine∨∃dbo:headquarter.dbo:Place
dbo:Magazine∨∃dbo:headquarter.dbo:Location
          │        │                                               ┌
dbo:Song
          │        │                                               ├
dbo:EurovisionSongContestEntry
          │        │                                               ├
dbo:Film
          │        │                                               ├
...
          │        │                                               ├
dbo:Newspaper
          │        └
∃dbo:owner.dbo:Agent∨∃dbo:language.dbo:Language
∃dbo:language.dbo:Language∨∃dbo:owner.dbo:Agent
          │                                                        │         ┌
∃dbo:genre.dbo:MusicGenre
∃dbo:genre.dbo:Genre
∃dbo:genre.dbo:TopicalConcept
          │                                                        │         ├
∃dbo:previousWork.dbo:Work∨∃dbo:genre.{dbr:Soundtrack}
∃dbo:releaseDate.{xsd:date}∨∃dbo:previousWork.dbo:Work
∃dbo:previousWork.dbo:Work∨∃dbo:releaseDate.{xsd:date}
∃dbo:runtime.{xsd:double}∨∃dbo:genre.{dbr:Soundtrack}
∃dbo:runtime.{xsd:double}∨∃dbo:previousWork.dbo:Work
          │                                                        ├
dbo:Album
          │                                                        │         ├
...
          │                                                        │         └
∃dbo:genre.{dbr:Film_soundtrack}∨∃dbo:language.{dbr:Tamil_language}
∃dbo:language.{dbr:Tamil_language}∨∃dbo:genre.{dbr:Film_soundtrack}
∃dbo:language.{dbr:Tamil_language}∨∃dbo:language.{dbr:Telugu_language}
∃dbo:language.{dbr:Tamil_language}∨∃dbo:previousWork.dbo:Film
          │                                                        │                  ┌
∃dbo:completionDate.{xsd:date}∧∃dbo:starring.dbo:Person
∃dbo:starring.dbo:Agent
          │                                                        │                  ├
...
          │                                                        └
dbo:TelevisionShow
          │                                                                           ├
∃dbo:completionDate.{xsd:date}∧∃dbo:starring.dbo:Agent
∃dbo:starring.dbo:Agent
∃dbo:channel.dbo:Agent∨∃dbo:director.dbo:Person
∃dbo:channel.dbo:Agent∨∃dbo:director.dbo:Agent
          │                                                                           └
∃dbo:location.dbo:PopulatedPlace
 
owl:Thing
          │                                                                ┌
dbo:ChristianBishop
          │                                                                ├
dbo:Actor
          │                                                                ├
dbo:Band
          │                                                                ├
dbo:ScreenWriter
          │                                                                ├
dbo:Scientist
          │                                                                ├
dbo:VoiceActor
          │                                                                ├
...
          │                                                                ├
dbo:MilitaryUnit
          │                                                                ├
dbo:Cardinal
          │                                                                ├
dbo:Athlete
          │                                                                ├
dbo:Noble
          │                                                                ├
dbo:Artist
          │                                                                ├
dbo:EducationalInstitution
          │                                                                ├
dbo:Monarch
          │                                                                ├
dbo:MusicalArtist
          │                                                                ├
dbo:Medician
          │                                                                │           ┌
...
          │                                                                ├
dbo:Royalty
          │                                                                │           └
dbo:Saint
          │                                                                │          ┌
...
          │                                                                ├
dbo:Cleric
          │                                                                │          └
dbo:Pope
          │                                                                │          ┌
...
          │                                                                ├
dbo:Writer
          │                                                                │          ├
dbo:Poet
          │                                                                │          └
dbo:Historian
          │         ┌
∃dbo:activeYearsStartYear.{xsd:gYear}∨dbo:Organisation
          │         │                                                      │                ┌
dbo:PoliticalParty
          │         │                                                      │                ├
dbo:BroadcastNetwork
          │         │                                                      │                ├
dbo:RadioStation
          │         │                                                      │                ├
dbo:CyclingTeam
          │         │                                                      │                ├
dbo:Legislature
          │         │                                                      │                ├
dbo:PublicTransitSystem
          │         │                                                      │                ├
dbo:IceHockeyLeague
          │         │                                                      │                ├
dbo:SoccerClub
∃dbo:ground.dbo:Place∨dbo:SoccerClub
          │         │                                                      │                ├
dbo:VolleyballLeague
          │         │                                                      │                ├
dbo:SpeedwayTeam
          │         │                                                      │                ├
dbo:ComedyGroup
          │         │                                                      │                ├
dbo:HandballTeam
          │         │                                                      │                ├
dbo:SoccerLeague
          │         │                                                      │                ├
dbo:AustralianFootballTeam
          │         │                                                      │                ├
dbo:CricketTeam
          │         │                                                      │                ├
dbo:TradeUnion
          │         │                                                      │                ├
dbo:RugbyLeague
          │         │                                                      │                ├
dbo:College
          │         │                                                      │                ├
dbo:SoftballLeague
          │         │                                                      │                ├
dbo:HockeyTeam
          │         │                                                      │                ├
...
          │         │                                                      │                ├
∃dbo:background.{STRING}
∃dbo:activeYearsStartYear.{xsd:gYear}
          │         │                                                      │                ├
dbo:RugbyClub
          │         │                                                      │                ├
dbo:University
∃dbo:location.dbo:City∨dbo:University
          │         │                                                      │                ├
dbo:MotorcycleRacingLeague
          │         │                                                      │                ├
dbo:CanadianFootballTeam
          │         │                                                      │                ├
dbo:BasketballTeam
          │         │                                                      │                ├
dbo:Company∨∃dbo:formationYear.{xsd:gYear}
          │         │                                                      │                ├
dbo:GovernmentAgency
          │         │                                                      │                ├
dbo:BaseballTeam
          │         │                                                      │                ├
dbo:HandballLeague
          │         │                                                      │                ├
dbo:Non-ProfitOrganisation
          │         │                                                      └
dbo:Organisation
          │         │                                                                       │                ┌
dbo:LacrosseLeague
          │         │                                                                       │                ├
dbo:InlineHockeyLeague
          │         │                                                                       │                ├
dbo:PoloLeague
          │         │                                                                       │                ├
dbo:AmericanFootballLeague
          │         │                                                                       │                ├
dbo:CurlingLeague
          │         │                                                                       │                ├
dbo:GolfLeague
          │         │                                                                       │                ├
...
          │         │                                                                       │                ├
dbo:BoxingLeague
          │         │                                                                       ├
dbo:SportsLeague
          │         │                                                                       │                ├
dbo:BowlingLeague
          │         │                                                                       │                ├
dbo:TennisLeague
          │         │                                                                       │                ├
dbo:AustralianFootballLeague
          │         │                                                                       │                ├
dbo:VideogamesLeague
          │         │                                                                       │                ├
dbo:SpeedwayLeague
          │         │                                                                       │                ├
dbo:CricketLeague
          │         │                                                                       │                ├
dbo:FieldHockeyLeague
          │         │                                                                       │                ├
dbo:AutoRacingLeague
          │         │                                                                       │                └
dbo:CanadianFootballLeague
          │         │                                                                       │                                 ┌
dbo:Broadcaster
          │         │                                                                       │                                 ├
dbo:School
          │         │                                                                       ├
∃dbo:city.dbo:Location∨dbo:School
∃dbo:city.dbo:Place∨dbo:School
∃dbo:city.dbo:PopulatedPlace∨dbo:School
∃dbo:city.dbo:Location∨∃dbo:foundingYear.{xsd:gYear}
∃dbo:city.dbo:Place∨∃dbo:foundingYear.{xsd:gYear}
          │         │                                                                       │                                 ├
...
          │         │                                                                       │                                 └
dbo:SportsTeam
          │         │                                                                       │                                                                          ┌
...
          │         │                                                                       ├
∃dbo:militaryBranch.dbo:MilitaryUnit∨∃dbo:activeYearsStartYear.{xsd:gYear}
∃dbo:activeYearsStartYear.{xsd:gYear}
∃dbo:activeYearsEndYear.{xsd:gYear}∨∃dbo:activeYearsStartYear.{xsd:gYear}
∃dbo:activeYearsEndYear.{xsd:gYear}∨∃dbo:militaryBranch.dbo:MilitaryUnit
∃dbo:activeYearsEndYear.{xsd:gYear}∨∃dbo:militaryBranch.dbo:Agent
∃dbo:activeYearsEndYear.{xsd:gYear}∨∃dbo:militaryBranch.dbo:Organisation
          │         │                                                                       │                                                                          └
dbo:Group
          │         │                                                                       ├
dbo:TelevisionStation∨∃dbo:broadcastArea.dbo:PopulatedPlace
dbo:TelevisionStation∨∃dbo:broadcastArea.dbo:Place
dbo:TelevisionStation∨∃dbo:broadcastArea.dbo:Location
dbo:TelevisionStation∨∃dbo:alias.{LABEL:en}
dbo:TelevisionStation∨∃dbo:firstAirDate.{xsd:date}
          │         │                                                                       │                                                           └
dbo:TelevisionStation
          │         │                                                                       ├
dbo:BasketballLeague
          │         │                                                                       ├
dbo:FormulaOneTeam
          │         │                                                                       ├
dbo:BaseballLeague
          │         │                                                                       └
dbo:Library
          ├
dbo:Agent
          │         │          ┌
dbo:Astronaut
          │         │          ├
dbo:TelevisionHost
          │         │          ├
dbo:LacrossePlayer
          │         │          ├
dbo:SquashPlayer
          │         │          ├
dbo:ComicsCreator
          │         │          ├
dbo:HorseRider
          │         │          ├
dbo:AmateurBoxer
          │         │          ├
dbo:RadioHost
          │         │          ├
dbo:SportsManager
          │         │          ├
dbo:IceHockeyPlayer
          │         │          ├
dbo:Guitarist
          │         │          ├
dbo:TableTennisPlayer
          │         │          ├
dbo:MilitaryPerson
          │         │          ├
dbo:Journalist
          │         │          ├
dbo:BaseballPlayer
          │         │          ├
dbo:FictionalCharacter
          │         │          ├
dbo:Swimmer
          │         │          ├
dbo:HandballPlayer
          │         │          ├
dbo:Model
          │         │          ├
dbo:NationalCollegiateAthleticAssociationAthlete
          │         │          ├
dbo:AmericanFootballPlayer
          │         │          ├
dbo:Chef
          │         │          ├
dbo:Boxer
          │         │          ├
dbo:GaelicGamesPlayer
          │         │          ├
dbo:MythologicalFigure
          │         │          ├
dbo:RacingDriver
          │         │          ├
dbo:Judge
          │         │          ├
dbo:ClassicalMusicArtist
          │         │          ├
dbo:ComicsCharacter
          │         │          ├
dbo:DartsPlayer
          │         │          ├
∃foaf:givenName.{LABEL:en}∨∃foaf:gender.{LABEL:en}
∃foaf:gender.{LABEL:en}
∃foaf:givenName.{LABEL:en}∨∃dbo:birthDate.{xsd:date}
∃dbo:birthDate.{xsd:date}
∃foaf:givenName.{LABEL:en}
          │         │          ├
dbo:Criminal
          │         │          ├
dbo:FashionDesigner
          │         │          ├
dbo:Bodybuilder
          │         │          ├
dbo:Gymnast
          │         │          ├
dbo:Presenter
          │         │          ├
dbo:Coach
          │         │          ├
dbo:NetballPlayer
          │         │          ├
dbo:Rower
          │         │          ├
dbo:HorseTrainer
          │         │          ├
dbo:SoapCharacter
          │         │          ├
dbo:ChessPlayer
          │         │          ├
dbo:SumoWrestler
          │         │          ├
dbo:Religious
          │         │          ├
dbo:PokerPlayer
          │         │          ├
dbo:OfficeHolder
          │         │          ├
dbo:Entomologist
          │         │          ├
dbo:Instrumentalist
          │         │          ├
dbo:Cyclist
          │         │          ├
dbo:TennisPlayer
          │         │          ├
...
          │         │          ├
dbo:BusinessPerson
          │         │          ├
dbo:Canoeist
          │         │          ├
dbo:SoccerPlayer
          │         │          ├
dbo:Wrestler
          │         │          ├
dbo:Philosopher
          │         │          ├
dbo:PlayboyPlaymate
          │         │          ├
dbo:BritishRoyalty
          │         └
dbo:Person
∃dbo:birthDate.{xsd:date}∨dbo:Person
∃foaf:gender.{LABEL:en}∨dbo:SportsTeamMember
∃foaf:gender.{LABEL:en}∨dbo:OrganisationMember
∃dbo:birthDate.{xsd:date}∨dbo:SportsTeamMember
          │                    │              ┌
dbo:President
          │                    │              ├
∃dbo:nationality.dbo:Location
∃dbo:nationality.dbo:Country
∃dbo:nationality.dbo:Place
∃dbo:nationality.dbo:PopulatedPlace
          │                    │              ├
dbo:Congressman
          │                    │              ├
dbo:Governor
          │                    │              ├
dbo:Senator
          │                    │              ├
dbo:MemberOfParliament
          │                    ├
dbo:Politician
          │                    │              ├
∃foaf:gender.{LABEL:en}
∃dbo:birthDate.{xsd:date}
∃foaf:givenName.{LABEL:en}
          │                    │              │                       └
dbo:Chancellor
          │                    │              ├
dbo:PrimeMinister
          │                    │              ├
∃dbo:country.dbo:PopulatedPlace
∃dbo:country.dbo:Location
∃dbo:country.dbo:Place
          │                    │              ├
dbo:Mayor
          │                    │              ├
∃dbo:country.dbo:Country
∃dbo:country.dbo:PopulatedPlace
∃dbo:country.dbo:Location
∃dbo:country.dbo:Place
          │                    │              └
...
          │                    │                   ┌
...
          │                    │                   ├
dbo:NascarDriver
          │                    ├
dbo:MotorsportRacer
          │                    │                   ├
dbo:FormulaOneRacer
          │                    │                   ├
dbo:MotorcycleRider
          │                    │                   └
dbo:SpeedwayRider
          │                    │                     ┌
...
          │                    │                     ├
dbo:Curler
          │                    ├
dbo:WinterSportPlayer
          │                    │                     ├
dbo:Skater
          │                    │                     └
dbo:FigureSkater
          │                    │                    ┌
∃dbo:squadNumber.{xsd:nonNegativeInteger}∨∃dbo:team.dbo:Agent
∃dbo:squadNumber.{xsd:nonNegativeInteger}∨∃dbo:team.dbo:Organisation
∃dbo:squadNumber.{xsd:nonNegativeInteger}∨∃dbo:team.dbo:SoccerClub
∃dbo:squadNumber.{xsd:nonNegativeInteger}∨∃dbo:team.dbo:SportsTeam
∃dbo:team.dbo:Agent∨∃dbo:squadNumber.{xsd:nonNegativeInteger}
          │                    ├
dbo:SportsTeamMember
∃dbo:squadNumber.{xsd:nonNegativeInteger}∨dbo:OrganisationMember
          │                    │                    └
...
          │                    │                    ┌
...
          │                    ├
dbo:VolleyballPlayer
          │                    │                    └
dbo:BeachVolleyballPlayer
          │                    ├
dbo:SoccerManager
          │                    ├
dbo:AnimangaCharacter
          │                    ├
dbo:Murderer
          │                    ├
dbo:Comedian
          │                    ├
dbo:Photographer
          │                    ├
dbo:RugbyPlayer
          │                    ├
dbo:MartialArtist
          │                    ├
dbo:SnookerPlayer
          │                    ├
dbo:SnookerChamp
          │                    ├
dbo:AustralianRulesFootballPlayer
          │                    ├
dbo:CollegeCoach
          │                    ├
dbo:BeautyQueen
          │                    ├
dbo:BadmintonPlayer
          │                    ├
dbo:Architect
          │                    ├
dbo:Skier
          │                    ├
dbo:Economist
          │                    ├
dbo:GridironFootballPlayer
          │                    ├
dbo:Engineer
          │                    ├
dbo:VolleyballCoach
          │                    ├
dbo:GolfPlayer
          │                    ├
dbo:BasketballPlayer
          │                    ├
dbo:Baronet
          │                    ├
dbo:Cricketer
          │                    ├
dbo:Priest
          │                    ├
dbo:Painter
          │                    ├
dbo:Jockey
          │                    ├
dbo:AdultActor
          │                    └
dbo:Ambassador
          │            ┌
...
          │            ├
∃dbo:countySeat.dbo:Settlement
∃dbo:countySeat.dbo:PopulatedPlace
∃dbo:countySeat.dbo:Location
∃dbo:countySeat.dbo:Place
          │            ├
dbo:Settlement
∃dbo:country.dbo:Location
∃dbo:country.dbo:Place
          │            │              └
dbo:Place
          │            ├
∃dbo:country.dbo:PopulatedPlace∨dbo:Region
∃dbo:country.dbo:PopulatedPlace∨dbo:AdministrativeRegion
∃dbo:country.dbo:PopulatedPlace∨dbo:Country
∃dbo:country.dbo:PopulatedPlace∨∃dbo:dissolutionYear.{xsd:gYear}
          │            │                                          └
dbo:ClericalAdministrativeRegion
          │            │              ┌
...
          │            ├
dbo:WineRegion
          │            │              └
∃dbo:growingGrape.dbo:Grape∨∃dbo:type.{dbr:American_Viticultural_Area}
∃dbo:growingGrape.dbo:FloweringPlant∨∃dbo:type.{dbr:American_Viticultural_Area}
∃dbo:growingGrape.dbo:Plant∨∃dbo:type.{dbr:American_Viticultural_Area}
∃dbo:growingGrape.dbo:Eukaryote∨∃dbo:type.{dbr:American_Viticultural_Area}
∃dbo:growingGrape.dbo:Species∨∃dbo:type.{dbr:American_Viticultural_Area}
          │            │                                            ┌
dbo:Monument
          │            │                                            ├
dbo:ConcentrationCamp
          │            ├
dbo:HistoricPlace∨∃dbo:location.dbo:Location
dbo:HistoricPlace∨∃dbo:location.dbo:Place
dbo:HistoricPlace∨dbo:ProtectedArea
∃dbo:location.dbo:Location
∃dbo:location.dbo:Place
          │            │                                            ├
dbo:HistoricPlace
          │            │                                            └
dbo:Park
          │            │                                                       ┌
...
          │            ├
∃dbo:capital.dbo:Location∨∃dbo:foundingYear.{xsd:gYear}
∃dbo:capital.dbo:Location∨∃dbo:dissolutionYear.{xsd:gYear}
∃dbo:dissolutionYear.{xsd:gYear}
∃dbo:foundingYear.{xsd:gYear}
          │            │                                                       │          ┌
∃dbo:areaWater.{xsd:double}
∃dbo:areaLand.{xsd:double}
∃dbo:populationDensity.{xsd:double}
          │            │                                                       └
dbo:Region
          │            │                                                                  └
∃dbo:capital.dbo:Location
∃dbo:capital.dbo:Place
          │            │                                                           ┌
dbo:Country
          │            │                                                           ├
...
          │            ├
∃dbo:capital.dbo:PopulatedPlace∧∃dbo:areaTotal.{xsd:double}
∃dbo:areaTotal.{xsd:double}∧∃dbo:capital.dbo:Location
∃dbo:areaTotal.{xsd:double}∧∃dbo:capital.dbo:PopulatedPlace
∃dbo:areaTotal.{xsd:double}∧∃dbo:capital.dbo:Place
∃dbo:areaTotal.{xsd:double}∧dbo:Country
          │            │                                                           │                        ┌
∃dbo:demonym.{LABEL:en}
∃dbo:minimumElevation.{xsd:double}
∃dbo:country.{dbr:United_States}
          │            │                                                           └
dbo:AdministrativeRegion
          │            │                                                                                    └
∃dbo:populationTotal.{xsd:nonNegativeInteger}
∃dbo:country.{dbr:Japan}∨∃dbo:country.{dbr:Germany}
∃dbo:country.{dbr:Japan}∨∃dbo:populationTotal.{xsd:nonNegativeInteger}
∃dbo:populationDensity.{xsd:double}∨∃dbo:populationTotal.{xsd:nonNegativeInteger}
∃dbo:country.{dbr:Japan}∨∃dbo:populationAsOf.{xsd:date}
∃dbo:populationDensity.{xsd:double}∨∃dbo:country.{dbr:Germany}
          │            │                                 ┌
dbo:SiteOfSpecialScientificInterest
          │            │                                 ├
...
          │            ├
dbo:Island∨∃dbo:interest.{STRING}
dbo:Island∨dbo:SiteOfSpecialScientificInterest
dbo:Island∨∃dbo:areaOfSearch.dbo:Place
dbo:Island∨∃dbo:areaOfSearch.dbo:PopulatedPlace
dbo:Island∨∃dbo:areaOfSearch.dbo:Location
          │            │                                 │          ┌
...
          │            │                                 └
dbo:Island
          │            │                                            ├
∃dbo:location.dbo:Place
∃dbo:numberOfIslands.{xsd:nonNegativeInteger}∨∃dbo:location.dbo:Place
          │            │                                            └
∃dbo:length.{xsd:double}∨∃dbo:elevation.{xsd:double}
∃dbo:elevation.{xsd:double}∨∃dbo:length.{xsd:double}
∃dbo:elevation.{xsd:double}∨∃dbo:numberOfIslands.{xsd:nonNegativeInteger}
          │            │                                  ┌
...
          │            │                                  ├
dbo:WorldHeritageSite
          │            ├
dbo:ProtectedArea∨∃dbo:id.{STRING}
dbo:ProtectedArea∨dbo:WorldHeritageSite
∃dbo:id.{STRING}∨dbo:ProtectedArea
dbo:WorldHeritageSite∨dbo:ProtectedArea
          │            │                                  │                 ┌
∃dbo:areaTotal.{xsd:double}
          │            │                                  │                 ├
∃dbo:region.dbo:Location
∃dbo:region.dbo:Place
∃dbo:state.dbo:Place
          │            │                                  └
dbo:ProtectedArea
          │            │                                                    ├
∃dbo:nearestCity.dbo:Place∨∃dbo:iucnCategory.{STRING}
∃dbo:nearestCity.dbo:Location∨∃dbo:iucnCategory.{STRING}
∃dbo:nearestCity.dbo:Place∨∃dbo:location.dbo:Country
∃dbo:nearestCity.dbo:Location∨∃dbo:location.dbo:Country
          │            │                                                    └
...
          │            │                 ┌
dbo:Planet
∃dbo:orbitalPeriod.{xsd:double}
          │            │                 ├
dbo:Star
          │            │                 ├
...
          │            │                 ├
dbo:Galaxy
          │            ├
dbo:CelestialBody
          │            │                 ├
dbo:Satellite
          │            │                 │             └
dbo:ArtificialSatellite
          │            │                 └
∃dbo:month.{STRING}
∃dbo:abbreviation.{STRING}
∃dbo:neighbourConstellations.{STRING}
          │            │                                     └
dbo:Constellation
          │            │                ┌
dbo:Mountain
∃dbo:locatedInArea.dbo:Location
          │            │                │                             ┌
dbo:Volcano
∃dbo:locatedInArea.dbo:Location
          │            │                ├
dbo:MountainRange∨dbo:Volcano
dbo:MountainRange∨∃dbo:locatedInArea.dbo:Place
dbo:MountainRange∨∃dbo:locatedInArea.dbo:PopulatedPlace
dbo:MountainRange∨∃dbo:locatedInArea.dbo:Location
∃dbo:elevation.{xsd:double}∨dbo:MountainRange
          │            │                │                             └
dbo:MountainRange
∃dbo:country.dbo:PopulatedPlace∨dbo:MountainRange
∃dbo:country.dbo:Location∨dbo:MountainRange
∃dbo:state.dbo:Place∨∃dbo:country.dbo:PopulatedPlace
∃dbo:state.dbo:Place∨∃dbo:country.dbo:Location
          │            │                │               ┌
dbo:Canal
          │            │                ├
dbo:BodyOfWater
dbo:River∨dbo:BodyOfWater
dbo:Stream∨dbo:Lake
dbo:River∨dbo:Lake
dbo:Stream∨∃dbo:location.dbo:Location
          │            │                │               └
dbo:Stream
          │            ├
dbo:NaturalPlace
dbo:River∨dbo:NaturalPlace
dbo:BodyOfWater∨dbo:Mountain
dbo:BodyOfWater∨∃dbo:locatedInArea.dbo:Country
dbo:BodyOfWater∨∃dbo:elevation.{xsd:double}
          │            │                │                          ┌
...
          │            │                │                          ├
dbo:Valley
          │            │                │                          ├
dbo:Glacier
          │            │                │                          ├
dbo:Lake
          │            │                │                          ├
dbo:MountainPass
          │            │                └
∃dbo:location.dbo:Location
∃dbo:location.dbo:Place
dbo:MountainPass∨∃dbo:location.dbo:Location
dbo:MountainPass∨∃dbo:location.dbo:Place
          │            │                                           ├
dbo:Sea
          │            │                                           ├
dbo:River
          │            │                                           ├
dbo:Crater
          │            │                                           ├
dbo:Bay
          │            │                                           └
dbo:Cave
          └
dbo:Location
                       │                          ┌
dbo:AmusementParkAttraction
                       │                          ├
∃dbo:yearOfConstruction.{xsd:gYear}
∃dbo:added.{xsd:date}
∃dbo:nrhpReferenceNumber.{STRING}
                       │                          ├
dbo:WaterRide
                       │                          ├
dbo:Airport
∃dbo:runwaySurface.{STRING}
                       │                          ├
...
                       │                          ├
dbo:RollerCoaster
                       │                          │                                              ┌
dbo:Racecourse
                       │                          │                                              ├
dbo:Stadium
                       │                          │                                              ├
dbo:SkiArea
                       │                          │                                              ├
dbo:MilitaryStructure
                       │                          ├
dbo:SportFacility∨∃dbo:location.dbo:Settlement
dbo:SportFacility∨dbo:MilitaryStructure
dbo:Stadium∨∃dbo:location.dbo:Settlement
dbo:SportFacility∨dbo:Venue
∃dbo:location.dbo:Settlement
dbo:Stadium∨dbo:MilitaryStructure
                       │                          │                                              ├
dbo:GolfCourse
                       │                          │                                              ├
dbo:RaceTrack
                       │                          │                                              ├
dbo:CricketGround
                       │                          │                                              └
dbo:SportFacility
                       │                          │            ┌
dbo:ShoppingMall
                       │                          │            ├
dbo:HistoricBuilding
                       │                          │            ├
dbo:Skyscraper
                       │                          │            ├
dbo:Museum
                       │                          ├
dbo:Building
                       │                          │            ├
dbo:Hotel
                       │                          │            ├
dbo:ReligiousBuilding
                       │                          │            ├
dbo:Castle
                       │                          │            ├
dbo:Restaurant
                       │                          │            └
dbo:Prison
                       │                          │                         ┌
...
                       │                          │                         ├
∃dbo:material.{STRING}
∃dbo:region.dbo:PopulatedPlace
∃dbo:region.dbo:Place
                       │                          │                         ├
∃dbo:openingYear.{xsd:gYear}∨∃dbo:bridgeCarries.{STRING}
∃dbo:bridgeCarries.{STRING}∨∃dbo:openingYear.{xsd:gYear}
∃dbo:openingYear.{xsd:gYear}∨∃dbo:crosses.dbo:Location
∃dbo:openingYear.{xsd:gYear}∨∃dbo:crosses.dbo:Place
∃dbo:crosses.dbo:Location∨∃dbo:openingYear.{xsd:gYear}
                       │                          ├
dbo:RouteOfTransportation
                       │                          │                         │                                     ┌
dbo:Road
                       │                          │                         ├
dbo:Road∨∃dbo:locatedInArea.dbo:Place
dbo:Road∨∃dbo:locatedInArea.dbo:Location
dbo:Road∨∃dbo:bridgeCarries.{STRING}
dbo:Road∨∃dbo:crosses.dbo:Location
dbo:Road∨∃dbo:crosses.dbo:Place
                       │                          │                         │                                     └
...
                       │                          │                         │                                          ┌
dbo:RailwayLine
                       │                          │                         └
∃dbo:location.dbo:Location∨dbo:RailwayLine
∃dbo:lineLength.{xsd:double}∨∃dbo:status.{STRING}
∃dbo:lineLength.{xsd:double}∨∃dbo:location.dbo:Location
∃dbo:lineLength.{xsd:double}∨∃dbo:location.dbo:PopulatedPlace
∃dbo:lineLength.{xsd:double}∨∃dbo:location.dbo:Place
                       │                          │                                                                    └
...
                       └
dbo:ArchitecturalStructure
dbo:Station∨dbo:Infrastructure
                                                  │                                        ┌
dbo:Tunnel
                                                  │                                        ├
dbo:Dam
                                                  │                                        ├
dbo:Hospital
                                                  │                                        ├
...
                                                  │                                        ├
dbo:Venue
                                                  │                                        ├
dbo:Theatre
                                                  │                                        ├
dbo:Bridge
                                                  ├
∃dbo:openingYear.{xsd:gYear}∨dbo:Station
∃dbo:address.{LABEL:en}∨dbo:Station
∃dbo:address.{LABEL:en}∨∃dbo:openingYear.{xsd:gYear}
∃dbo:address.{LABEL:en}∨∃dbo:railwayPlatforms.{STRING}
                                                  │                                        │           ┌
∃dbo:servingRailwayLine.dbo:Place∨∃dbo:address.{LABEL:en}
∃dbo:servingRailwayLine.dbo:ArchitecturalStructure∨∃dbo:address.{LABEL:en}
∃dbo:servingRailwayLine.dbo:Location∨∃dbo:address.{LABEL:en}
∃dbo:address.{LABEL:en}
                                                  │                                        │           ├
∃dbo:country.{dbr:United_Kingdom}
∃dbo:location.dbo:PopulatedPlace
∃dbo:location.dbo:Place
                                                  │                                        │           ├
...
                                                  │                                        │           ├
∃dbo:owningOrganisation.dbo:Agent∨∃dbo:openingDate.{xsd:date}
∃dbo:owner.dbo:Agent∨∃dbo:openingDate.{xsd:date}
∃dbo:owningOrganisation.dbo:Organisation∨∃dbo:openingDate.{xsd:date}
∃dbo:owner.dbo:Organisation∨∃dbo:openingDate.{xsd:date}
∃dbo:owningOrganisation.dbo:Agent∨∃dbo:stationStructure.{STRING}
                                                  │                                        ├
dbo:Station
                                                  │                                        │           │                  ┌
∃dbo:openingYear.{xsd:gYear}∨∃dbo:address.{LABEL:en}
∃dbo:address.{LABEL:en}
∃dbo:servingRailwayLine.dbo:Place∨∃dbo:address.{LABEL:en}
∃dbo:openingYear.{xsd:gYear}∨∃dbo:owningOrganisation.dbo:Agent
∃dbo:openingYear.{xsd:gYear}∨∃dbo:owner.dbo:Agent
∃dbo:openingYear.{xsd:gYear}∨∃dbo:owningOrganisation.dbo:Company
                                                  │                                        │           ├
dbo:RailwayStation
                                                  │                                        │           │                  └
...
                                                  │                                        │           └
∃dbo:owningOrganisation.dbo:Agent∨∃dbo:openingYear.{xsd:gYear}
∃dbo:owner.dbo:Agent∨∃dbo:openingYear.{xsd:gYear}
∃dbo:owningOrganisation.dbo:Organisation∨∃dbo:openingYear.{xsd:gYear}
∃dbo:owner.dbo:Organisation∨∃dbo:openingYear.{xsd:gYear}
∃dbo:owningOrganisation.dbo:Agent∨∃dbo:railwayPlatforms.{STRING}
                                                  │                                        │                  ┌
∃dbo:part.dbo:Location∨∃dbo:location.dbo:PopulatedPlace
∃dbo:status.{STRING}∨∃dbo:location.dbo:PopulatedPlace
∃dbo:status.{STRING}∨∃dbo:part.dbo:Location
∃dbo:status.{STRING}∨∃dbo:part.dbo:ArchitecturalStructure
∃dbo:status.{STRING}∨∃dbo:part.dbo:Place
∃dbo:location.dbo:PopulatedPlace
                                                  │                                        │                  ├
...
                                                  │                                        └
dbo:Infrastructure
                                                  │                                                           ├
∃dbo:locatedInArea.dbo:Place
∃dbo:locatedInArea.dbo:Location
∃dbo:bridgeCarries.{STRING}∨∃dbo:locatedInArea.dbo:Place
∃dbo:bridgeCarries.{STRING}∨∃dbo:locatedInArea.dbo:PopulatedPlace
∃dbo:bridgeCarries.{STRING}∨∃dbo:locatedInArea.dbo:Location
∃dbo:bridgeCarries.{STRING}∨∃dbo:crosses.dbo:Location
∃dbo:bridgeCarries.{STRING}∨∃dbo:crosses.dbo:Place
                                                  │                                                           └
∃dbo:railwayPlatforms.{STRING}∨∃dbo:address.{LABEL:en}
∃dbo:address.{LABEL:en}
∃dbo:railwayPlatforms.{STRING}∨∃dbo:owningOrganisation.dbo:Agent
∃dbo:railwayPlatforms.{STRING}∨∃dbo:owner.dbo:Agent
∃dbo:railwayPlatforms.{STRING}∨∃dbo:owningOrganisation.dbo:Organisation
∃dbo:railwayPlatforms.{STRING}∨∃dbo:owner.dbo:Organisation
                                                  │                            ┌
∃dbo:routeTypeAbbreviation.{STRING}∨∃dbo:length.{xsd:double}
∃dbo:routeNumber.{STRING}∨∃dbo:length.{xsd:double}
∃dbo:length.{xsd:double}
∃dbo:routeTypeAbbreviation.{STRING}
∃dbo:routeNumber.{STRING}
                                                  │                            ├
∃dbo:elevation.{xsd:double}
∃dbo:runwayDesignation.{STRING}∨∃dbo:elevation.{xsd:double}
∃dbo:runwayLength.{xsd:double}
∃dbo:runwayDesignation.{STRING}
                                                  │                            ├
∃dbo:runwaySurface.{STRING}
∃dbo:runwayDesignation.{STRING}
∃dbo:runwayLength.{xsd:double}
                                                  │                            ├
∃dbo:primaryFuelType.{dbr:Hydropower}
                                                  │                            ├
...
                                                  │                            ├
dbo:LaunchPad
                                                  │                            │                                               ┌
dbo:Tower
                                                  │                            ├
∃dbo:location.dbo:Place∨∃dbo:address.{LABEL:en}
∃dbo:address.{LABEL:en}∨∃dbo:location.dbo:Place
∃dbo:openingYear.{xsd:gYear}∨∃dbo:location.dbo:Place
∃dbo:location.dbo:Place∨∃dbo:openingYear.{xsd:gYear}
∃dbo:openingYear.{xsd:gYear}∨∃dbo:elevation.{xsd:double}
                                                  │                            │                                               └
dbo:Lighthouse
                                                  └
dbo:Tower∨dbo:Infrastructure
dbo:Lighthouse∨dbo:Infrastructure
dbo:Infrastructure∨dbo:Tower
dbo:Infrastructure∨dbo:Lighthouse
dbo:Tower∨dbo:PowerStation
                                                                               │                                             ┌
dbo:RoadJunction
                                                                               │                                             ├
dbo:RailwayTunnel
                                                                               │                                             ├
dbo:WaterwayTunnel
                                                                               │                                             ├
dbo:RoadTunnel
                                                                               └
dbo:PowerStation∨∃dbo:openingYear.{xsd:gYear}
∃dbo:openingYear.{xsd:gYear}∨dbo:PowerStation
dbo:PowerStation∨∃dbo:owningOrganisation.dbo:Agent
dbo:PowerStation∨∃dbo:owningOrganisation.dbo:Organisation
dbo:PowerStation∨∃dbo:owner.dbo:Agent
                                                                                                                             │                ┌
∃dbo:averageAnnualGeneration.{xsd:double}∨∃dbo:openingYear.{xsd:gYear}
∃dbo:openingYear.{xsd:gYear}
∃dbo:installedCapacity.{xsd:double}∨∃dbo:openingYear.{xsd:gYear}
                                                                                                                             ├
dbo:PowerStation
                                                                                                                             │                ├
∃dbo:location.dbo:Settlement∨∃dbo:status.{STRING}
∃dbo:status.{STRING}
                                                                                                                             │                └
...
                                                                                                                             └
...