The Open Data Hub Virtual Knowledge Graph is available as a SPARQL endpoint. Here we describe its schema (its structure).
By default, classes and properties use http://schema.org/
as prefix.
NB: you can dereference the URLs of classes and properties to see their official documentation. For instance, have a look at http://schema.org/Hotel.
Black arrows are for object properties. White arrows denotes a sub-class relationship.
Cardinalities are provided by data and object properties. Cardinalities of 1 are kept most of the time implicit, expect for highlighting something counter-intuitive.
Cardinalities of object properties follow the "look across" notation like in UML diagrams.
For instance, in the accommodation diagram, for each Accommodation
instance, there is exactly one LodgingBusiness
instance accessible through the object property schema:containedInPlace
. On the opposite direction, for each LodgingBusiness
instance there are 0 or n instances of Accommodation
that points to it through the object property schema:containedInPlace
.