About: http://webisa.webdatacommons.org/139637204

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	s again facing poverty.[15] Starting about 1913, tens of thousands of African Americans left Mississippi for the North in the Great Migration to industrial cities such as St. Louis, Chicago, Detroit, Philadelphia, and New York.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com