About: http://webisa.webdatacommons.org/423783905

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	where fn is the frequency of the nth harmonic, f1 is the fundamental frequency, known as the 1st harmonic, and n is a positive integer which represents the harmonic ranking number.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com