OWL restrictions - defining classes that only contains properties with a specific property value

Question

I'm currently playing a bit with the OWL and especially with restrictions. I'm trying to create a query that does the following:

Suppose that I have a class 'Cinema' that has a property 'movies' (that contains objects of type 'Movie'). The class 'Movie' contains a property named 'genre'. Now I want to create a class ActionCinemas that only has movies with the genre 'action'.

I'm really not sure how to do this. I was thinking about doing something with intersections or the cardinality but I'm not sure of that.

Could anyone give me a hand in this?

score 12 · Accepted Answer · answered Oct 28 '12 at 21:45

12

You need a combination of an allValuesFrom restriction and a hasValue restriction, e.g like this:

Turtle syntax:

 my:ActionCinema a owl:Class ;
      rdfs:subClassOf my:Cinema,
                      [ a owl:Restriction; 
                        owl:onProperty my:hasMovie ;
                        owl:allValuesFrom [ a owl:Restriction ; 
                                            owl:onProperty my:hasGenre ;
                                            owl:hasValue my:Action ]
                      ] .

Manchester OWL syntax:

Class: ActionCinema
   SubClassOf: Cinema that hasMovie only ( hasGenre value Action )

answered Oct 28 '12 at 21:45

Jeen Broekstra

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Why do you use conjunction (`that`) instead a comma between `Cinema` and `hasMovie` in Manchester OWL syntax? – whirlwin Mar 20 '13 at 14:37
@whirlwin Both say the basically the same thing, so it's a matter of taste, I just think the first (using 'that') is more clear and concise. – Jeen Broekstra Mar 20 '13 at 20:42

OWL restrictions - defining classes that only contains properties with a specific property value

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