PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As increasing numbers of people flooded westward during the late eighteenth and early nineteenth centuries, new states including Indiana, Michigan, Wisconsin, and Iowa expressly prohibited black emigration, while Ohio passed black laws" to curtail the rash of fugitive slaves entering its borders in search of freedom.
http://www.w3.org/ns/prov#wasQuotedFrom
  • pbs.org