About: http://webisa.webdatacommons.org/452392786

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	This works not only for pairs, but for a number of other types as well, e.g. for Either.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com