About: http://webisa.webdatacommons.org/42066414

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	from the older VCS. As you mentioned it, best practices are very important, and they are not easily found on literature.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org