About: http://webisa.webdatacommons.org/216057996

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 filter unit 4 is a filter, such as a bandpass filter, that removes unnecessary band components from a signal transmitted on a transmission path.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com