About: http://webisa.webdatacommons.org/215670807

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 elastic member is attached at one end to an end of the tether and its other end is attached to a sensor such as a switch or optical interrupter.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com