About: http://webisa.webdatacommons.org/431269441

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	So, if 'A is a b' is a unary on A, then B can be a derived subtype with a derivation rule for the unary.
http://www.w3.org/ns/prov#wasQuotedFrom	ormfoundation.org