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http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Sometimes, patent is a barrier for adopting a technology, so how can we alleviate the obstacle result from the patent?
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com