About: http://webisa.webdatacommons.org/351476304

Property	Value
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	Because of the complexity, only a few vendors have succeeded with web search, most notably Google and Microsoft.
http://www.w3.org/ns/prov#wasQuotedFrom	oreilly.com