About: http://webisa.webdatacommons.org/309818492

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	When people do not have enough calories, staples such as rice and wheat are vital: they provide the most calories per dollar.
http://www.w3.org/ns/prov#wasQuotedFrom	economist.com