About: http://webisa.webdatacommons.org/21857235

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 sensor may be any proper one such as a microswitch attached to the camera body for detecting the detachment of the camera barrel 214, or the like.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com