About: http://webisa.webdatacommons.org/177235275

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	Since type is a reserved word, I append an underscore when using it as an identifier. (I can find no style recommendation about this.)
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com