<http://webisa.webdatacommons.org/285239422> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/285239422> <http://www.w3.org/ns/prov#wasQuotedFrom> <candlepowerforums.com> . <http://webisa.webdatacommons.org/prov/491291105> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/285239422> . <http://webisa.webdatacommons.org/285239422> <http://www.w3.org/ns/prov#value> "Parting lines are unavoidable and exist on every type of injection molded part, including o-rings." .