About: http://webisa.webdatacommons.org/304229968

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 script mentioned there is the same I used except the fact that my script does it for all site collections, sites and sub-sites in my web application and the script in post does it for specified site collection, site and sub-sites.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com