About: http://webisa.webdatacommons.org/3523788

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	Ashwini's answer accurately describes what is happening, here are a few examples of differences between the two methods:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com