About: http://webisa.webdatacommons.org/3535014

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	A signal can be large or small, ac. or d.c., a sine wave or nonsinusoidal, or even nonelectrical such as sound or light.
http://www.w3.org/ns/prov#wasQuotedFrom	rfcafe.com