About: http://webisa.webdatacommons.org/454460037

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	First of all, many file formats, such as swf (Flash), jpg, png, gif, and pdf are already compressed (there are also specialized Flash optimizers).
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com