About: http://webisa.webdatacommons.org/433921087

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	I imagine this might be practical for storing passwords or other sensitive information to prevent traces being left on disk. (No downvote for this; it is not related to the actual question, and it is not terribly important.)
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com