About: http://webisa.webdatacommons.org/416889936

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	A presentation of examples of variables varrying directly and inversely.
http://www.w3.org/ns/prov#wasQuotedFrom	oercommons.org