[NLP2RDF] NIF: mandatory properties and types

[Maxime Lefrançois]

Hi Sebastian,

> We
> could say, that each instance of str:Context has a reflexive
> connection
> via referenceContext to itself. This would make sense probably.
> Actually, this would solve the problem between the distinction
> between
> Context and StringInContext. As we could model the Context as a
> subClassOf String, i.e. the subclass, that has a reflexive reference
> to
> itself ..
> Do you know how to express this in OWL? Maybe
> http://www.w3.org/TR/2009/WD-owl2-new-features-20090611/#F6:__Reflexive.2C_Irreflexive.2C_and_Asymmetric_Object_Properties

You might want to use the Self restriction http://www.w3.org/TR/owl2-new-features/#F4:_Self_Restriction

:Context owl:equivalentClass [ 
   a owl:Restriction ; 
   owl:onProperty :referenceContext ; 
   owl:hasSelf "true"^^xsd:boolean ] .

Maxime Lefrançois