About: http://webisa.webdatacommons.org/71994498

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	The circle constant is one of the two most important numbers is mathematics.
http://www.w3.org/ns/prov#wasQuotedFrom	ruby-lang.org