About: http://webisa.webdatacommons.org/435944329

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	They appear on wikis, Tumblr blogs, Wordpress blogs and other sites, and so they are not going to be added via an exploit in any particular software.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com