About: http://webisa.webdatacommons.org/75939340

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	I have found ones for such generally useful things as creating state and country SELECT lists, performing stock quote lookups, and doing credit card number validity checking.
http://www.w3.org/ns/prov#wasQuotedFrom	sys-con.com