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YAGO
YAGO3 is a huge semantic knowledge base, derived from Wikipedia WordNet and GeoNames. Currently, YAGO3 has knowledge of more than 10 million entities (like persons,... -
OpenCyc
About Now it is even easier to use the rich and diverse collection of real-world concepts in OpenCyc to bring meaning to your semantic web applications! The full OpenCyc... -
Semantic Web Dog Food Corpus
About Data exposed: Metadata (papers, presentations, people) for several semantic web related conferences and workshops, including the most recent ISWC, ESWC and WWW events....