About: http://webisa.webdatacommons.org/103693022

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	An arbitrary periodic or an aperiodic voltage signal vo can be attained in this manner, such as shown in FIG. 1, as well known to those skilled in the art.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com