PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This document is a general unofficial summary of the requirements of the Federal Hazardous Substances Act that apply to chemicals and other hazardous substances.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cpsc.gov