Table 2.

Recommended values of predicate_id capturing a broad range of use cases, drawn from SKOS vocabularies and from OWL

Predicate	Description
owl:sameAs	The subject and the object are instances (OWL individuals), and the two instances are the same.
owl:equivalentClass	The subject and the object are classes (OWL class), and the two classes are the same.
owl:equivalentProperty	The subject and the object are properties (OWL object, data, annotation properties), and the two properties are the same.
rdfs:subClassOf	The subject and the object are classes (OWL class), and the subject is a subclass of the object.
rdfs:subPropertyOf	The subject and the object are properties (OWL object, data, annotation properties), and the subject is a subproperty of the object.
skos:relatedMatch	The subject and the object are associated in some unspecified way.
skos:closeMatch	The subject and the object are sufficiently similar that they can be used interchangeably in some information retrieval applications.
skos:exactMatch	The subject and the object can, with a high degree of confidence, be used interchangeably across a wide range of information retrieval applications.
skos:narrowMatch	The object of the triple is a narrower concept than the subject of the triple.
skos:broadMatch	The object of the triple is a broader concept than the subject of the triple.