Re: Modeling WordNet with OWL Full?

Hi Dave,

Thanks for the detailed explanation.   I see my mistake now.
Appreciate the help,

 - Mike


In a message dated 2/10/04 6:43:12 PM, davemenendez@optonline.net writes:
> > In a message dated 2/7/2004 9:51:04 PM Eastern Standard Time,
> > David Menendez <zednenem@psualum.com> writes:
> > >If you want to say that <#cell> has a <#part> relationship with
> > ><#cell_wall> and <#cytoplasm>, then what you want is:
> > >
> > >    <owl:Class rdf:ID='cell'>
> > >      <part rdf:resource='#cell_wall'/>
> > >      <part rdf:resource='#cytoplasm'/>
> > >    </owl:Class>
> >
> > That is exactly what I wanted to do and tried to do by
> > declaring the Object Properties with the domain of #cell;
> > however, it failed loading in protege with the error message
> > that "part" was a duplicate.  Of course, this could just be
> > a bug in protege, or, my syntax could have been wrong.
> 
> I see. If you want to say that <#part> is a relationship between one class 
> and another, you could declare it like so:
> 
> <owl:ObjectProperty rdf:ID='part'>
>   <rdfs:domain rdf:about='&owl;Class'/>
>   <rdfs:range rdf:about='&owl;Class'/>
> </owl:ObjectProperty>
> 
> (I'm using &owl; so I don't have to type the full URI. It isn't required.)
> 
> What you had tried before was to declare <#part> to be a relationship 
> between a resource of type <#cell> and a resource that is both a <#cell-wall> and a 
> <#cytoplasm>. You are allowed to do that, so Protege is probably guessing 
> that you really meant to do something else. Or else it's a bug.
> 
> > Do you have a particular OWL validator that you run
> > your syntax against?
> 
> There's one on the web, but I don't have its URI handy. I think you can get 
> to it via the OWL home page. Your problem was more at the RDF/RDFS level, 
> though. You might want to read through the RDF primer if you haven't already.
> 
> 
-------------------------------
Michael C. Daconta
Chief Scientist, APG, McDonald Bradley, Inc.
www.daconta.net