PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The question is believed to be rather abstract than practical whether slavery ever can or would exist in any portion of the acquired territory even if it were left to the option of the slaveholding States themselves.
http://www.w3.org/ns/prov#wasQuotedFrom
  • presidentialrhetoric.com