How to get object properties of specific class in SPARQL

Question

hi,

I have some ontology(campus.owl).There are tree classes(Student,Sport,Lecturer).Student class is joined with Lecturer class using "has" object property and Student class joined with Sport class with "isPlay" object property.

problem

I want to get the object property between Student and Lecturer using some SPARQL query.

PREFIX rdfs: http://www.w3.org/2000/01/rdf-schema# PREFIX rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns# PREFIX my: http://www.semanticweb.org/ontologies/2010/5/Ontology1275975684120.owl#

SELECT ?prop WHERE { ?prop ..........??? }

Any Idea..??

Thank in advance!

Answer 1

SELECT ?prop WHERE { ?student ?prop ?lecturer.
                     ?student a <student>.
                     ?lecturer a <lecturer>.
                     }

I think that will do what you want.

If you want to get information abuot the property you can do something like

SELECT ?prop, ?pp, ?oo WHERE {
                     ?prop ?pp ?oo.
                     ?student ?prop ?lecturer.
                     ?student a <student>.
                     ?lecturer a <lecturer>.
                     }