About: http://webisa.webdatacommons.org/173685836

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	(B) Where there is a connecting device, by making it impossible to assemble the valve and its actuating mechanism except in such a manner that it will function properly;
http://www.w3.org/ns/prov#wasQuotedFrom	pacode.com