About: http://webisa.webdatacommons.org/328953138

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	For a signal, such as a control signal, which requires real-time properties and cannot allow a large number of errors, a low threshold value must be set.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com