PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Until about 1850, much of Illinois was still frontier land and sparsely populated, which the exception of Chicago and river towns such as Cairo and St. Louis in neighboring Missouri.
http://www.w3.org/ns/prov#wasQuotedFrom
  • werelate.org