PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A chemical reaction is a process that leads to the interconversion of chemical substances.[1] The substances initially involved in a chemical reaction are called the reactants, and the substances produced by the reaction are called the products.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newworldencyclopedia.org