About: http://webisa.webdatacommons.org/161926029

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	Is it sometimes worth it when the subclasses could still do just about anything they want to m_obj except set it to null or another instance?
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com