]> $Revision: 1.0 $ This ontology describes a topic and related properties. This ontology is created by Li Ding -- http://www.csee.umbc.edu/~dingli1/, Harry Chen -- http://www.csee.umbc.edu/~hchen4/, Lalana Kagal -- http://www.cs.umbc.edu/~lkagal1/, Tim Finin -- http://www.csee.umbc.edu/~finin/. Topic An abstract topic