About: http://webisa.webdatacommons.org/8326384

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	When s becomes odd, witness? checks if as ??? 1 (mod n), and if so, returns #t indicating that a is a witness to the compositeness of n.
http://www.w3.org/ns/prov#wasQuotedFrom	programmingpraxis.com