About: http://webisa.webdatacommons.org/97803623

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	A further 20 million slaves are estimated to have been exported to other parts of the world, in particular the Middle East and North Africa, over a similar time period.
http://www.w3.org/ns/prov#wasQuotedFrom	bbc.co.uk