About: http://webisa.webdatacommons.org/312546402

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	Though it does not really belong in this article, there is a very clever proof of the fourth example (and many similar problems) which should certainly go somewhere in the Tricki.
http://www.w3.org/ns/prov#wasQuotedFrom	tricki.org