]> homeland_security.owl, v 1.0 2004/11/22 Homeland Security Ontology v1.0 Homeland Security Ontology Place Typically, entities of type Place include continents, regions, countries, states, cities Thing This class encompasses one of the three major divisions of the ontology by discarding persons and places Person This includes different types/specializations of person Event Any event Terror Event State Event Organization Any organization... Terror Organization State Organization Academic Organization Political Organization Religious Organization Charitable Organization Corporate Organization Financial Organization Agent Such as terror agent, .... Terror Agent State Agent WatchList Communication Language City City Start DateTime Date of occurrence of an event, examples: 2001-09-11 occured at Event occured at Place listed in TerrorAgent listed in WatchList located in City located in Country capital of City capital of Country directly involved in coordinated claims responsibility responsible for affiliated with funded by part of conducted in spoken by spoken in leader of member of operates in based at primarily lives in national of operates in received by participated by originated by educated at faculty at friends with associated with family with