About: http://webisa.webdatacommons.org/363176694

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	Slaves are an important part of the southern economy but are relatively few in the northern states.
http://www.w3.org/ns/prov#wasQuotedFrom	historyworld.net