PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Since the American planters, and hence the slave traders, looked in particular for fit slaves in the prime of life, between about 15 and 35 years old, it may be argued that robbing western Africa of people particularly from this group of its population would especially tend to reduce births and thereby reduce the capacity of the population to maintain its numbers.
http://www.w3.org/ns/prov#wasQuotedFrom
  • britannica.com