Adding individuals to object property. Ontology unusually formatted.

[Nogales Moyano Alberto]

Hello I am trying to add an object property between this two individuals. I 
also have the object property in the code and the individuals are in the 
ontology. In only need to connect them using a property. The individuals look 
like this in the code, my problem is that I have never work with that 
ontologies using this "Description" tag.

<!-- http://vivo.iu.edu/individual/n6356<http://vivo.iu.edu/individual/n6356> 
-->

<owl:Thing rdf:about="http://vivo.iu.edu/individual/n6356";>
    <rdf:type rdf:resource="&bibo;Article"/>
    <rdf:type rdf:resource="&bibo;Document"/>
    <rdf:type rdf:resource="&vivo;ConferencePaper"/>
    <rdf:type rdf:resource="&vivo;InformationResource"/>
    <rdf:type rdf:resource="&owl;NamedIndividual"/>
    <rdfs:label xml:lang="en-us">Indiana University Digital Music Library 
Project</rdfs:label>
    <vitro:modTime 
rdf:datatype="&xsd;dateTime">2010-07-28T15:36:03</vitro:modTime>
    <vitro:moniker rdf:datatype="&xsd;string">conference paper</vitro:moniker>
    <bibo:doi 
rdf:datatype="&xsd;string">http://doi.acm.org/10.1145/379437.379774<http://doi.acm.org/10.1145/379437.379774></bibo:doi>
    <title>Indiana University Digital Music Library Project</title>
    <dateTimeValue rdf:resource="http://vivo.iu.edu/individual/n4086167"/>
    <bibo:presentedAt rdf:resource="http://vivo.iu.edu/individual/n5092"/>
    <informationResourceInAuthorship 
rdf:resource="http://vivo.iu.edu/individual/n6257"/>
    <informationResourceInAuthorship 
rdf:resource="http://vivo.iu.edu/individual/n6300"/>
    <vitro:mostSpecificType rdf:resource="&vivo;ConferencePaper"/>
</owl:Thing>



<!-- http://vivo.iu.edu/individual/n6399<http://vivo.iu.edu/individual/n6399> 
-->

<owl:Thing rdf:about="http://vivo.iu.edu/individual/n6399";>
    <rdf:type rdf:resource="&bibo;Article"/>
    <rdf:type rdf:resource="&bibo;Document"/>
    <rdf:type rdf:resource="&vivo;ConferencePaper"/>
    <rdf:type rdf:resource="&vivo;InformationResource"/>
    <rdf:type rdf:resource="&owl;NamedIndividual"/>
    <rdfs:label xml:lang="en-us">Assessing Future Ecosystem Services: a Case 
Study of the Northern Highlands Lake District  Wisconsin</rdfs:label>
    <vitro:modTime 
rdf:datatype="&xsd;dateTime">2010-07-28T15:36:03</vitro:modTime>
    <vitro:moniker rdf:datatype="&xsd;string">conference paper</vitro:moniker>
    <bibo:doi 
rdf:datatype="&xsd;string">http://doi.acm.org/10.1145/379437.99999<http://doi.acm.org/10.1145/379437.99999></bibo:doi>
    <title>Assessing Future Ecosystem Services: a Case Study of the Northern 
Highlands Lake District  Wisconsin</title>
    <dateTimeValue rdf:resource="http://vivo.iu.edu/individual/n111111"/>
    <bibo:presentedAt rdf:resource="http://vivo.iu.edu/individual/n2222"/>
    <informationResourceInAuthorship 
rdf:resource="http://vivo.iu.edu/individual/n3333"/>
    <informationResourceInAuthorship 
rdf:resource="http://vivo.iu.edu/individual/n4444"/>
    <vitro:mostSpecificType rdf:resource="&vivo;ConferencePaper"/>
</owl:Thing>

I have tried with this code but the getters give me null values. Getting the 
two individuals by its names, getting the object property and adding them to 
the model.

        Individual doc = model.getIndividual("n6356");
        Individual ref = model.getIndividual("n6399");
        ObjectProperty cites = 
model.getObjectProperty("http://purl.org/ontology/bibo/cites";);
        model.add(doc,cites,ref);

Thanks a lot.

______________________________

Alberto Nogales Moyano
Information engineering research unit
University of Alcalá