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
Just as Cyc has many ways of representing aspects of time, Cyc has many ways of describing spatial properties and relationships.  Fortunately, the ideas that we present in this lesson are familiar and much of the vocabulary is self-documenting, so we won’t add much explanation.