About: http://webisa.webdatacommons.org/333309200

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 guess you mean convert it to a formal grammar with rules of the form V->w, where V is a nonterminal and w is a string of terminals/nonterminals.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com