About: http://webisa.webdatacommons.org/391312244

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	If a source is particularly obscure, such that you might never have heard of it elsewhere, you should give credit to the person who brought it to your attention.That seems like a rule that would be more workable.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com