About: http://webisa.webdatacommons.org/377950079

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	(My pedagogical example along these lines are in Haskell, free of side-effects, and thus especially easy to imagine being substituted one for the other.)
http://www.w3.org/ns/prov#wasQuotedFrom	ezyang.com