About: http://webisa.webdatacommons.org/2163312

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	Now since a proof starts from propositions and refutation is a proof, refutation, too, will start from propositions.
http://www.w3.org/ns/prov#wasQuotedFrom	mit.edu