About: http://webisa.webdatacommons.org/45522179

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 was going to add the try/catch code for the WebRequest where I could catch the System.Net.WebException type and see if the error was a 404 error, but it involved lots more time, code and might have been confusing
http://www.w3.org/ns/prov#wasQuotedFrom	msdn.com