About: http://webisa.webdatacommons.org/316327567

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 accept this answer since there is a reference (I guessed it was already done somewhere).
http://www.w3.org/ns/prov#wasQuotedFrom	mathoverflow.net