About: http://webisa.webdatacommons.org/205097314

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	assumes that all product characteristics except price are exogenous, and the justi???cation is that they are much harder
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com