| These services relate to the realization of query capabilities directed to information sources. |
| •owl:Thing |
| •SpatioTemporalThing |
| •Endurant |
| •NonPhysicalEndurant |
| •SocialObject |
| •NonAgentiveSocialObject |
| •NonPhysicalArtefact |
| •WebService |
| •SemanticQueryWebService |
| •InformationSourceQueryService |