[Kim-discussion] questions about trusted entities and extending ontologies

[Philip Alexiev]

Hi Again

On 06/04/2010 11:05 PM, Yang Fangkai wrote:
>       3. I used Protege to open protons.owl, but it returned the
> following error message. I am wondering why... (maybe this is no
> longer the KIM question, but I will be very thankful if you could
> offer me a few hints)
>
> org.semanticweb.owlapi.rdf.syntax.RDFParserException:
> [line=92:column=48] IRI
> 'http://www.w3.org/2000/01/rdf-schema##Literal' cannot be resolved
> against curent base IRIhttp://proton.semanticweb.org/2006/05/protons#
>
>    
The problem is in the two '#' symbols in the  URI . This usually happens 
when the namespace is defined with an '#' and the class definition 
contains '#' as well. For example:
<!ENTITY rdfs 'http://www.w3.org/2000/01/rdf-schema#'>
<rdfs:range rdf:resource="&rdfs;#Literal"/> <-----   the use of # here 
is a flaw

  The definitions are correct in protons. I guess you have modified 
something or added something besides protons.


Hope this helps
Philip

-- 
Philip Alexiev<philip.alexiev at ontotext.com>
Software Engineer
Ontotext AD