OpenCyc for the Semantic Web
The Foundation is providing all Cyc concepts in a form compliant with Semantic Web standards. An OWL version of each concept, including links to neighboring concepts, is available from a hyperlink at the top of each concept page in the Cyc Foundation Browser. Here is an example page and an example of the OWL version of the concept. A single file containing the entire vocabulary is currently available in OWL format upon request.