About: http://webisa.webdatacommons.org/308335499

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	If desired, a switch or other sensor may be used to give an output indicating that the extreme left-hand position has been reached.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com