About: http://webisa.webdatacommons.org/133521506

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	Slavery is a system under which people are treated as property to be bought and sold, and are forced to work.[1] Slaves can be held against their will
http://www.w3.org/ns/prov#wasQuotedFrom	abovetopsecret.com