Retrieving the 'derived' value when listing statement with inference

[Benson Margulies <bi...@gmail.com>]

I make the following java call. None of the triples is literally a
Rex.relationship; they are all written with some sub prop or another.

I was hoping / expecting that the triples that I got back would be the
actual triples with the actual specific property in them, but, as it
were, no such luck. They all come back with, yup, Rex.relationship, in
the middle slot. So, um, what's the right way?


            StmtIterator sameAsStmts = model.listStatements(item,
Rex.relationship, (RDFNode)null);

Re: Retrieving the 'derived' value when listing statement with inference

[Dave Reynolds <da...@gmail.com>]

On Thu, 2010-12-30 at 15:21 -0500, Benson Margulies wrote: 
> I make the following java call. None of the triples is literally a
> Rex.relationship; they are all written with some sub prop or another.
> 
> I was hoping / expecting that the triples that I got back would be the
> actual triples with the actual specific property in them, but, as it
> were, no such luck. They all come back with, yup, Rex.relationship, in
> the middle slot. So, um, what's the right way?
> 
> 
>             StmtIterator sameAsStmts = model.listStatements(item,
> Rex.relationship, (RDFNode)null);

There isn't a direct way to that. 

Easiest approach is probably the brute force query such as:

  SELECT ?p WHERE 
  {
       ?item   ?p    ?obj .
       ?p   rdfs:subPropertyOf   rex:relationship .
  }

Dave