About: http://webisa.webdatacommons.org/20004919

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	Instead of the micro-switches 22, 68, 70, 72, sensors, such as hall sensors, or optical devices such as light barriers or the like could be used as an alternative.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com