About: http://webisa.webdatacommons.org/394486407

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	Seems like the Evernote folks have written something especially for this case:
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com