ISSUE-86

anonymous properties

RESOLVED: RDF/XML serialization for anonymous inverse properties

State:

CLOSED

Product:

Raised by:

Evren Sirin

Opened on:

2007-12-06

Description:

Anonymous inverse properties can be used in ObjectPropertyAssertion axioms like 

   ObjectPropertyAssertion(InverseObjectProperty(property) subject object )

According to [1], the RDF/XML serialization of this assertion will be

   subject _:p object .
   _:p owl11:inverseObjectPropertyExpression property .

which is not valid RDF because RDF does not allow bnodes in the predicate position [2]. AFAICT this is the only place where anonymous inverse properties appear in the predicate position (all other uses get serialized into subject or object position). Disallowing anonymous inverses in ObjectPropertyAssertion would solve the problem (and would not affect the expressivity).

[1] http://www.w3.org/2007/OWL/wiki/Mapping_to_RDF_Graphs
[2] http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/#section-triples

Related Actions Items:

No related actions

Related emails:

1. Re: Proposal to resolve ISSUE-86 (from alanruttenberg@gmail.com on 2008-03-28)
2. RE: Proposal to resolve ISSUE-86 (from schneid@fzi.de on 2008-03-28)
3. Re: Proposal to resolve ISSUE-86 (from pfps@research.bell-labs.com on 2008-03-28)
4. Re: Proposal to resolve ISSUE-86 (from jjc@hpl.hp.com on 2008-03-28)
5. RE: Proposal to resolve ISSUE-86 (from schneid@fzi.de on 2008-03-28)
6. RE: Proposal to resolve ISSUE-86 (from boris.motik@comlab.ox.ac.uk on 2008-03-27)
7. RE: Proposal to resolve ISSUE-86 (from msmith@clarkparsia.com on 2008-03-26)
8. RE: Proposal to resolve ISSUE-86 (from msmith@clarkparsia.com on 2008-03-26)
9. RE: Proposal to resolve ISSUE-86 (from boris.motik@comlab.ox.ac.uk on 2008-03-26)
10. Re: Proposal to resolve ISSUE-86 (from alanruttenberg@gmail.com on 2008-03-26)
11. Re: Proposal to resolve ISSUE-86 (from pfps@research.bell-labs.com on 2008-03-26)
12. Re: Proposal to resolve ISSUE-86 (from bparsia@cs.man.ac.uk on 2008-03-26)
13. Re: Proposal to resolve ISSUE-86 (from alanruttenberg@gmail.com on 2008-03-26)
14. Re: Proposal to resolve ISSUE-86 (from msmith@clarkparsia.com on 2008-03-26)
15. ISSUE-103 (metamapping): Meta Issue to track other issues related to mapping (from sysbot+tracker@w3.org on 2008-03-17)
16. Proposal to resolve ISSUE-86 (from alanruttenberg@gmail.com on 2008-03-16)
17. ISSUE-86 (anonymous properties): RDF/XML serialization for anonymous inverse properties (from sysbot+tracker@w3.org on 2007-12-06)

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