About: http://webisa.webdatacommons.org/98473849

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	The first and the second were identical, but the third was optimized in a fashion as it could assume null was a comparison.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com