…ubClass should be the central organizing relation of ontologies [3]. hmm... the RoleNoun convention suggests part rather than partOf . The partOf relation is widely agreed to be a partial order; it is transitive, anti-symmetric, and reflexive. The reflexivity of partOf is, howeve…

… the right idea about what it means? Does it follow conventions such as using a RoleNoun for properties? (No URI is easy to type or read, but some are much easier than others.) IRIs and internationalization issues add some subtleties here. Friendly to one person is not necessaril…