About: http://webisa.webdatacommons.org/12256807

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	In Africa???s more arid countries, such as Chad, Mali, and Mauritania, there is not enough rainfall to raise yields dramatically.
http://www.w3.org/ns/prov#wasQuotedFrom	earthpolicy.org