About: http://webisa.webdatacommons.org/184177877

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	If you do not want to do the testing yourself, and you still want to use XPIs safely then get them from here. [mozilla.org] There the extensions are tested for security and other flaws before they are released to the public.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org