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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	For questions relating to the removal of dirt, debris and other unwanted foreign material from various surfaces and porous materials, including methods, tools and supplies, and expected results. learn more???
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com