Jena Effects of Different Entailment Regimes

Posted by blueomega on Stack Overflow See other posts from Stack Overflow or by blueomega
Published on 2010-06-09T16:20:26Z Indexed on 2010/06/09 16:42 UTC
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I am trying sparql and the use of entailment.

As a example i used http://www.w3.org/TR/2010/WD-sparql11-entailment-20100126/#t112

i try to put them in jena.

     OntClass book1= model.createClass(NS+"book1");
     OntClass book2=model.createClass(NS+"book2");
     OntClass book3=model.createClass(NS+"book3");
     OntClass publication=model.createClass(NS+"publication");
     OntClass article=model.createClass(NS+"article");
     OntClass mit=model.createClass(NS+"MIT");

     ObjectProperty a = model.createObjectProperty(NS+"a");
     ObjectProperty publishes = model.createObjectProperty(NS+"publishes");

     book1.addProperty(a, publication);
     book2.addProperty(a, article);
     publication.addSubClass(article);

     publishes.addRange(publication);
     mit.addProperty(publishes, book3);

where model is type OntModel.

and i used the query similar to the problem

     "PREFIX table: "I have correct namespace here"+
     "SELECT *"+
    "WHERE"+
    "{"+
    " ?x ?y table:publication  ."+
    "}";

The model was created like this. Hope OntModelSpec is ok.

OntModel m = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM_RDFS_INF, null);

i get as results from query


 x                                                           y               
| http://www.example.com/ontologies/sample.owl#publishes   | rdfs:range                                       |
| http://www.example.com/ontologies/sample.owl#article     | rdfs:subClassOf                                  |
| http://www.example.com/ontologies/sample.owl#book1       | http://www.example.com/ontologies/sample.owl#a |
| http://www.example.com/ontologies/sample.owl#publication | rdfs:subClassOf                                  |
| http://www.example.com/ontologies/sample.owl#book3       | rdf:type                                         |   

Can anyone give me a example, with and without entailment, so a cant try code, can get the results right.

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