What are some possible object level building block ontologies?
Some of the many upper object level ontologies that could be used as building blocks include: Sowa’s upper ontology, Russell and Norvigs ontology, Casati and Varzis theory of holes, Allens temporal axioms, Smiths and Guarinos mereotopologies, the Core Plan Representation, a Simple-Time ontology, a Standard-Units ontology, an Agents ontology, the Numbers ontology (from the Ontolingua server), and the Natural-Kinds and Positions ontology (authored by the Ontology Group at ITBM-CRN),