About: http://webisa.webdatacommons.org/431451174

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	For example, the digital audio input signal 107 may be based on an audio file, such as an MP3 file, and may contain security information in a file header or other portion of the MP3 file.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com