About: http://webisa.webdatacommons.org/376794658

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	Grep is a tool that originated from the UNIX world during the 1970's.
http://www.w3.org/ns/prov#wasQuotedFrom	regular-expressions.info