About: http://webisa.webdatacommons.org/243055124

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	One problem is confounding factors ??? this is when a factor other than the one being investigated is responsible for the effects.
http://www.w3.org/ns/prov#wasQuotedFrom	nationalpost.com