About: http://webisa.webdatacommons.org/198986904

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	Not sure if this feature is new, or just exploding in use, but there is an option to create polls (Questions) for your friendbase on facebook.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com