About: http://webisa.webdatacommons.org/69117257

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	For example, a bolt is a threaded fastener used to secure machine parts by engaging corresponding threads on a nut (or the machine part).
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com