About: http://webisa.webdatacommons.org/9337239

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	Underlying each of these properties" are a matched pair of a function and sub routine to get/set the property for the control passed in, which are called if an extended property is changed in the target control's property window.
http://www.w3.org/ns/prov#wasQuotedFrom	codeproject.com