About: http://webisa.webdatacommons.org/356051607

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	Update: here is an approach that does not require you to set up a background grid in advance.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com