About: http://webisa.webdatacommons.org/120300728

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	As an aside, please follow .NET naming conventions - and name your test methods so it is clear what scenario they are sorting. (You probably do not need ref, either...)
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com