About: http://webisa.webdatacommons.org/262607970

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	When a polarity change occurs between two test frequencies, one of these frequencies, such as the higher frequency, is chosen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr