About: http://webisa.webdatacommons.org/446290239

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	are also commonly identified as rounds, and Pi is a special ratio derived from the mathematical properties of circles.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com