PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Fifty years later Songhai regained independence and in the 15th century conquered most of Mali, including Timbuktu, a center of trade and learning.On a pilgrimage to Mecca, 1495???97, Songhai Emperor Askia Muhammad was appointed caliph in the western Sudan.
http://www.w3.org/ns/prov#wasQuotedFrom
  • howstuffworks.com