About: http://webisa.webdatacommons.org/421846264

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 deserts such as the Sahara, artificial oases have been successfully created by using tube wells, which tap deep sources of groundwater.
http://www.w3.org/ns/prov#wasQuotedFrom	infoplease.com