About: http://webisa.webdatacommons.org/319845511

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	Custom markup is not a new concept: many formats allow for this, and Word 2003 offered support for custom markup that has been widely used in custom systems for manufacturing, legislation, and other applications.
http://www.w3.org/ns/prov#wasQuotedFrom	msdn.com