PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Chemicals are more accurately referred to as chemical substances, which are forms of matter that have constant chemical compositions and characteristic properties.
http://www.w3.org/ns/prov#wasQuotedFrom
  • marketresearch.com