About: http://webisa.webdatacommons.org/152197659

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	A third button 27 may be a reset or start button that powers the transmitter for a predetermined amount of time, such as ten or fifteen seconds, after which the transmitter of the unit will turn off.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk