About: http://webisa.webdatacommons.org/435301485

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 do not think that at the moment there is a significant functional difference between the two, except that if you use other Google apps, it is convenient to use Reader as well.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com