]> Complex class descriptions for the realization of organic functional groups. en 2.0 Michel Dumontier Organic Functional Group Ontology (complex) Dumontier Lab application/rdf+xml 2007-10-01 1 1 1 2 1 1 1 1 1 1 1 1 1 2 1 2 2 1 2 2 2 2 1 3