About: http://webisa.webdatacommons.org/122085824

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	In mathematics, a mapping is a rule which relates each element x of one set X to a unique element y in another set Y. The mapping is expressed as the function, f, thus: y = f(x).
http://www.w3.org/ns/prov#wasQuotedFrom	nous.org.uk