Re: [OWLAPI-developer] Importing RDF: Assertion Problem

[Simon S. <ses...@gm...>]

>    <rdf:Description
> rdf:about="
http://www.semanticweb.org/adoxx/ontologies/2016/5/untitled-ontology-24#hasId
">
>      <rdfs:label>hasId</rdfs:label>
>      <rdf:type
> rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
>    </rdf:Description>

This is an rdfs property. You should declare this as a datatype property.

OWLAPI, in non-strict mode, will hack rdfs properties into object or data
properties if there is a suitable range declaration; otherwise it will fall
back to using an annotation property.

Simon

On Sep 3, 2016 5:56 AM, "Benedikt Pittl" <ben...@un...>
wrote:

> Dear all!
>
> First I want to thank you for answering my question yesterday. Today I
> observed a problem with the assertions. I have an RDF like in the
> following section (by the way, the RDF was created using D2RQ):
>
> <?xml version="1.0" encoding="windows-1252"?>
> <rdf:RDF
>      xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
>
> xmlns:vocab="http://www.semanticweb.org/adoxx/ontologies/2016/5/untitled-
> ontology-24#"
>      xmlns:owl="http://www.w3.org/2002/07/owl#"
>      xmlns:db="....."
>      xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
>      xmlns:map="......"
>      xmlns:xsd="http://www.w3.org/2001/XMLSchema#" >
>    <rdf:Description
> rdf:about="http://www.semanticweb.org/adoxx/ontologies/2016/5/untitled-
> ontology-24#hasId">
>      <rdfs:label>hasId</rdfs:label>
>      <rdf:type
> rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
>    </rdf:Description>
>    <rdf:Description
> rdf:about="http://www.w3.org/2000/01/rdf-schema#label">
>      <rdf:type
> rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Property"/>
>    </rdf:Description>
>    <rdf:Description
> rdf:about="http://www.semanticweb.org/adoxx/ontologies/2016/5/untitled-
> ontology-24#kunde2">
>      <vocab:hasId
> rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">2</vocab:hasId>
>      <rdfs:label>kunden #2</rdfs:label>
>      <rdf:type
> rdf:resource="http://www.semanticweb.org/adoxx/ontologies/2016/5/untitled-
> ontology-24#Consumer"/>
>    </rdf:Description>
>    <rdf:Description
> rdf:about="http://www.semanticweb.org/adoxx/ontologies/2016/5/untitled-
> ontology-24#Consumer">
>      <rdfs:label>Consumer</rdfs:label>
>      <rdf:type
> rdf:resource="http://www.w3.org/2000/01/rdf-schema#Class"/>
>    </rdf:Description>
> </rdf:RDF>
>
> My goal is to import this RDF an merge it with other ontologies. By
> importing the file via loadOntologyFromOntologyDocument I observed that
> the I get an AnnotationAssertion instead of a DataPropertyAssertion for
> the property hasId.
> So I get
>
> AnnotationAssertion(<http://www.semanticweb.org/adoxx/
> ontologies/2016/5/untitled-ontology-24#hasId>
> <http://www.semanticweb.org/adoxx/ontologies/2016/5/
> untitled-ontology-24#kunde2>
> "2"^^xsd:integer)
> instead of
>
> DataPropertyAssertion(<http://www.semanticweb.org/adoxx/
> ontologies/2016/5/untitled-ontology-24#hasId>
> <http://www.semanticweb.org/adoxx/ontologies/2016/5/
> untitled-ontology-24#kunde2>
> "2"^^xsd:integer).
>
> What RDF construct is necessary to get the DataPropertyAssertion?
>
> Kind regards
> Benedikt
>
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