About: http://webisa.webdatacommons.org/352828065

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	Many of the diagrams and charts are based on secondary sources, including but not limited to sales statistics, biographies, recording sesion notes, sheet music, and raw audio readings.
http://www.w3.org/ns/prov#wasQuotedFrom	rekkerd.org