About: http://webisa.webdatacommons.org/158753342

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 friction brake engages whenever the operator releases the dead-man switch or at any time there is a power failure.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com