$Id: daml+oil-ex.daml,v 1.1 2001/02/14 00:30:07 timbl Exp $ An example ontology Animal This class of animals is illustrative of a number of ontological idioms. Animals have exactly two parents, ie: If x is an animal, then it has exactly 2 parents (but it is NOT the case that anything that has 2 parents is an animal). hasAncestor no car is a person every person is a man or a woman Adam Adam is a person.