About: http://webisa.webdatacommons.org/59073719

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	Sounds a bit like word salad, but if you interpret it as reductio ad absurdum i.e. if a is not a then a does not exist, it follows from the law of non-contradiction.
http://www.w3.org/ns/prov#wasQuotedFrom	fstdt.com