About: http://webisa.webdatacommons.org/340098503

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	For all the details, the best places to go are a book and a bunch of articles (e.g., this one) by F. Rohrlich.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com