About: http://webisa.webdatacommons.org/282855231

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 agree with @scribu; calling it something other than post type will just add confusion.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.org