About: http://webisa.webdatacommons.org/161869889

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	Accordingly, the ability to control the frequency and amplitude is a desired quality of the present invention.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com