About: http://webisa.webdatacommons.org/9233864

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	In this manner, only GREQ tones are transmitted to the tone circuitry 88, and noise and other extraneous signals are filtered out of the spectrum.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com