Copyright © 2002 Cycorp
•Introduction
•Fundamental Expression Types
•Top Level Collections
•Time and Dates
•Spatial Properties and Relations
•Event Types
•Information
•More Content Areas
Survey of
Knowledge Base Content
Cyc uses around 37,000 different event types to describe what happens in the world.   This large number includes events that range from the extremely general to the extremely specific.  The extremely specific events might only be used once because they were created for a very specific situation and therefore involve a large number of qualifiers.  For example, the sub-collection of all events in which garbage containing an explosive part has been disposed of by encasing in….