About: http://webisa.webdatacommons.org/452028458

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	it is the first time in the history of the world that you had a situation where you could not get out of slavery, that your children had to be enslaved as long as the mother was a slave.
http://www.w3.org/ns/prov#wasQuotedFrom	booknotes.org