About: http://webisa.webdatacommons.org/86919983

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	Vendors such as Fast and MarkLogic have the ability to search across multiple repositories and return a set of combined results and even use the results programmatically to do other interesting things.
http://www.w3.org/ns/prov#wasQuotedFrom	econtentmag.com