About: http://webisa.webdatacommons.org/8233681

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	This is vital in audio, radio and other situations where waveforms are produced as input and in order to analyse them, you need to calculate the frequency spectrum to show the signal strength as a function of frequency.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com