PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It details the beginnings of the slave trade, slavery as a business, the experiences of slaves, and the effect of abolitionism on the trade, using such documents as a letter from a sixteenth-century African king to the king of Portugal calling for a more regulated slave trade, and the nineteenth-century testimony of a South African slave accused of treason.
http://www.w3.org/ns/prov#wasQuotedFrom
  • oup.com