PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The principal cargo for most schooners on Lake Michigan was lumber, which fed the high demand for building materials in growing urban areas such as Chicago and Milwaukee.
http://www.w3.org/ns/prov#wasQuotedFrom
  • archives.gov