About: http://webisa.webdatacommons.org/39849654

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	Best to include the most basic relevant information, and from your example I would suggest including the category.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com