About: http://webisa.webdatacommons.org/415286530

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	However, there was a condition to freedom for the black slaves: the freedmen and women were obliged to enter into contracts for three years after slavery was abolished.
http://www.w3.org/ns/prov#wasQuotedFrom	enciclopediapr.org