About: http://webisa.webdatacommons.org/128844357

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	We cannot ???know??? that slavery is immoral because there was a time when it was not considered so.
http://www.w3.org/ns/prov#wasQuotedFrom	mailonsunday.co.uk