[Pellet-users] getting rid of ^^xsd:string with SPARQL?

[Olli]

Hi all,

I hope this question is accepted in the mailinglist.

I have following output by querying a BioPax ontology.
Running query with PelletQueryEngine...
-------------------------------------------------------
| compname                        | receptor          |
=======================================================
| "VDR-VD3"^^xsd:string           | "VDR"^^xsd:string |
| "VDR-9cRA"^^xsd:string          | "VDR"^^xsd:string |
| "(VDR-9cRA)-RXRα"^^xsd:string   | "VDR"^^xsd:string |
| "(VDR-VD3)-RXRα"^^xsd:string    | "VDR"^^xsd:string |
| "(VDR-9cRA)-(RXRα)"^^xsd:string | "VDR"^^xsd:string |

I tried to create a query with excluding the ^^xsd:string tail, but I 
couldn't manage it.
How would it be possible to define that as a SPARQL query?
Is it possible?
Or are there build in methods to use?

Header of my ontology is:

?xml version="1.0"?>
<rdf:RDF
    xmlns="http://www.biopax.org/release/biopax-level2.owl#"
    xmlns:p1="http://protege.stanford.edu/plugins/owl/protege#"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
    xmlns:owl="http://www.w3.org/2002/07/owl#"
  xml:base="http://www.biopax.org/release/biopax-level2.owl">
  <owl:Ontology rdf:about="">
    <rdfs:comment rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >This is version 1.0 of the BioPAX Level 2 ontology.  The goal of 
the BioPAX group is to develop a common exchange format for biological 
pathway data.  More information is available at http://www.biopax.org.  
This ontology is freely available under the LGPL 
(http://www.gnu.org/copyleft/lesser.html).</rdfs:comment>
  </owl:Ontology>.............

...and names are defined in following fashion:

<SHORT-NAME 
rdf:datatype="http://www.w3.org/2001/XMLSchema#string>(FXR-ba)-(RXR)</SHORT-NAME>

I tried a lot, but somehow I'm unable to overcome this task?!

thanks in advance
Olli