About: http://webisa.webdatacommons.org/410323634

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	In the arts, a primary source may be a piece of art, such as a painting or sculpture, a musical score, a poem, a book or chapter, or an essay--whatever is created by the artist, writer, photographer, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	usablenet.com