About: http://webisa.webdatacommons.org/98467220

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	When that station is polled, a REQUEST signal is generated on the line 120 and an indication, such as a flashing symbol, appears on the control computer monitor screen 12 identifying the requesting station.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com