About: http://webisa.webdatacommons.org/270035151

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	In a context where grammar is unimportant such as blogs, memo's, text messages, etc... then this is fine. (Please note that I am not implying that all blogs, memos, txt's are not unimportant)
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com