PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The 1979 ISDP Panel was a longitudinal survey in which respondents were asked about their income, labor force participation, and other characteristics.
http://www.w3.org/ns/prov#wasQuotedFrom
  • census.gov