[Pellet-Users] Help:SPARQL query!!

[Chiara Bernabei]

 My query at this moment return the istances of a specific class(?y) and of its sub-classes, but I have to find also the istances of its direct super-classes(not TFLEItem), for example y="Banquet _Catering" I have to find the istance "Restaurant_Catering_31"of "Restaurant_Catering" class. The problem is that the reasoner give me all the super_classes if I write 
"?o rdf:type ?s.  ?y rdfs:subClassOf ?s" .How can I do??.When y="Hotel_Meeting_Facilities" I haven't any problem because with" ?o rdf:type ?y" I find all the istances.
My query is:
             PREFIX CapOffer:<http://www.lia.deis.unibo.it/research/MIDAS/Ontologies/TFLEOntology.owl#> 
             PREFIX profile:<http://www.lia.deis.unibo.it/research/MIDAS/Ontologies/MIDAS_Profile.owl#> 
             PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
             PREFIX rdfs:<http://www.w3.org/2000/01/rdf-schema#> 
             PREFIX owl:<http://www.w3.org/2002/07/owl#> 
             SELECT *
             FROM NAMED <http://www.lia.deis.unibo.it/research/MIDAS/Ontologies/ZefiroRequest.owl>
             FROM NAMED <http://www.lia.deis.unibo.it/research/MIDAS/Ontologies/ZefiroOffer2.owl>
             WHERE {
             GRAPH <http://www.lia.deis.unibo.it/research/MIDAS/Ontologies/ZefiroRequest.owl> {
                       ?res a owl:Restriction ;
                       owl:onProperty profile:has_cap_item ;
                       owl:someValuesFrom ?y .
                        }.
             GRAPH <http://www.lia.deis.unibo.it/research/MIDAS/Ontologies/ZefiroOffer2.owl> {
                      ?x rdf:type CapOffer:TFLECapability .
                      ?x profile:has_cap_item ?o .
                      ?o rdf:type ?y .
             OPTIONAL  {
                      ?s rdfs:subClassOf CapOffer:TFLEItem .
                      ?y rdfs:subClassOf ?s .
                      ?o rdf:type ?s .}
                             }.
            }
                        Thank in advance
                 Bernabei Chiara
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