About: http://webisa.webdatacommons.org/276220891

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 sinusoidal modulator 720 modulates the input signal filtered by the first band-pass filter to various band signals centered at certain frequencies, such as 50 Hz, 100 Hz, 150 Hz, and 200 Hz.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com