About: http://webisa.webdatacommons.org/222227900

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 there, the level of separation is, IMO, mostly a matter of what level you want to track and any other needs you have for controlling access.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com