Might be worth looking at Sowa's Conceptual Graphs. E.g., [1], talks about time, and links to his book. [1] http://www.jfsowa.com/ontology/process.htm http://w

Might be worth looking at Sowa's Conceptual Graphs. E.g., [1], talks about time, and links to his book. [1] http://www.jfsowa.com/ontology/process.htm http://www.jfsowa.com/ontology/process.htm