About: http://webisa.webdatacommons.org/52536689

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	The spring is preferably a steel wire torsion spring with two straight ends, although other biasing means such as leaf springs or other springs will work.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com