About: http://webisa.webdatacommons.org/314424227

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	In Haskell, tuple types are separated by commas, e.g., (t1, t2), so what you want is:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com