PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Mr. Spencer has pointed out that a general distinction between slavery and serfdom, in the sense commonly attached to each of those terms, is by no means easy to establish; the real state of a subject-class, especially in early forms of society, depending much more upon the character of the master, and the actual conditions of social development, than upon matters of privilege and legislation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sacred-texts.com