About: http://webisa.webdatacommons.org/77315263

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	I am thinking it is because string is an address so it does not change after initialization.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com