PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Employer contributions for government social insurance as well as payments by employees, the self-employed, and other individuals who participate in government social insurance programs.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bea.gov