About: http://webisa.webdatacommons.org/9406330

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 the seventeenth century, the Portuguese pulled slaves from equatorial and central Africa, particularly Angola and the Congo, as well as Guinea.
http://www.w3.org/ns/prov#wasQuotedFrom	jrank.org