About: http://webisa.webdatacommons.org/268434945

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	Authors, including myself, use it to check purchase info. hope that will help.
http://www.w3.org/ns/prov#wasQuotedFrom	themeforest.net