About: http://webisa.webdatacommons.org/179640363

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	But Wikipedia is a good place to start (read up on the Sahara, there is bound to be some names about its boundaries) and often Wikipedia has good links at the bottom of the page to take you further.
http://www.w3.org/ns/prov#wasQuotedFrom	reddit.com