| This service is responsible for the execution of any user defined query. It affords the possibility of building a library of custom query types that can be executed via this service. The contents of the query library (semantic queries) should be annotated in such a fashion as permits their automatic discovery and assessment via the query assessment reasoning service. |
| •owl:Thing |
| •SpatioTemporalThing |
| •Endurant |
| •NonPhysicalEndurant |
| •SocialObject |
| •NonAgentiveSocialObject |
| •NonPhysicalArtefact |
| •WebService |
| •SemanticQueryWebService |
| •UserDefinedQueryService |