About: http://webisa.webdatacommons.org/419607806

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	We have 2 quantities (called variables") and we observe there is a relationship between them.
http://www.w3.org/ns/prov#wasQuotedFrom	intmath.com