[Pellet-users] SPARQL results

[Jan-Oliver Wuelfing]

Hello everyone,

I enquire the following OWL-file with this SPARQL-query:

REFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?Subject ?Predicate ?Object
WHERE
  { ?Subject ?Predicate ?Object .
         FILTER regex(?Object, "1ms")
  }

and get this result:

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| Subject                                               | Predicate 
                                                  | Object                |
=============================================================================================================================================================================
| <http://www.owl-ontologies.com/MSO.owl#DDSS>          | 
<http://www.owl-ontologies.com/MSO.owl#expectsLatencyLessThan> | 
"1ms"^^<http://www.w3.org/2001/XMLSchema#string> |
| <http://www.owl-ontologies.com/MSO.owl#LatencyType_4> | 
<http://www.owl-ontologies.com/MSO.owl#expectsLatencyLessThan> | 
"1ms"^^<http://www.w3.org/2001/XMLSchema#string> |
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

from this OWL-file:

<rdf:RDF
     xmlns="http://www.owl-ontologies.com/MSO.owl#"
     xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
     xmlns:protege="http://protege.stanford.edu/plugins/owl/protege#"
     xmlns:assert="http://www.owl-ontologies.com/assert.owl#"
     xmlns:owl="http://www.w3.org/2002/07/owl#"
     xmlns:p1="http://www.owl-ontologies.com/Ontology1199437116.owl#"
     xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
     xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
   xml:base="http://www.owl-ontologies.com/MSO.owl">
...
   <owl:Class rdf:ID="Application">
     <rdfs:subClassOf rdf:resource="#ApplicationResource"/>
     <owl:equivalentClass>
       <owl:Class>
         <owl:oneOf rdf:parseType="Collection">
           <Application rdf:ID="KoDaVis"/>
           <Application rdf:ID="WISDOM"/>
           <Application rdf:ID="DDSS">
             <expectsLatencyLessThan 
rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
             >1ms</expectsLatencyLessThan>
           </Application>
           <Application rdf:ID="TOPS"/>
           <Application rdf:ID="INCA"/>
         </owl:oneOf>
       </owl:Class>
     </owl:equivalentClass>
   </owl:Class>

I wonder why I get no result if I enquire for 'DDSS' as the subject like 
this:

REFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>

SELECT ?Subject ?Predicate ?Object
WHERE
  { ?Subject ?Predicate ?Object .
         FILTER regex(?Subject, "DDSS")
  }



Maybe, anyone has an idea?!

Many thanks in advance
Best wishes for the new year
  Jan
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