About: http://webisa.webdatacommons.org/414522380

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	the RHS has to have its type calculated anyways -- the compiler would catch mismatched types and throw an error, so not really a cost there, I think.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com