About: http://webisa.webdatacommons.org/256952238

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	One choice is to have a generic element called <item> with an attribute @type that has one of the two values, book and DVD, to distinguish between the two types of items.
http://www.w3.org/ns/prov#wasQuotedFrom	microsoft.com