About: http://webisa.webdatacommons.org/272879973

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	The following is a letter I sent to the makers of a ray trace progam
http://www.w3.org/ns/prov#wasQuotedFrom	artofhacking.com