About: http://webisa.webdatacommons.org/220570377

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	Note that taking the opposite is an operation not just on categories, but also on functors and on natural transformations.
http://www.w3.org/ns/prov#wasQuotedFrom	mathoverflow.net