Search Mailing List Archives

Limit search to: Subject & Body Subject Author
Sort by: Reverse Sort
Limit to: All This Week Last Week This Month Last Month
Select Date Range     through    

[protege-discussion] Query about the "subPropertyOf" axoim

Thomas Russ tar at ISI.EDU
Tue May 26 10:55:51 PDT 2009

On May 24, 2009, at 5:43 AM, andygui wrote:

> Dear Sir,
> I have data like this:
>       hasUncle subPropertyOf hasRelative
>       Man(p1)
>       Man(p2)
>       hasUncle(p1,p2)
> and, I'm trying to use sparql in Protege3.4 to query like this:
>       PREFIX family:< 
> >
>       SELECT ?person
>       WHERE { family:p1 family:hasRelative ?person.}
> but, it just returns "no matches found"
> Could you please help me?

SPARQL doesn't understand OWL or RDF semantics.  So it isn't quite the  
right tool to use for this task.

You could write a SPARQL query that included the semantics of the  
subPropertyOf axiom and get an answer.

It may also be possible to run a reasoner and save the results, but I  
don't know if the reasoners will actually realize the additional  
assertions implied by subPropertyOf or not.  If they don't actually  
add them to the asserted knowledge, then this won't help you.

More information about the protege-discussion mailing list