PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ???[used] in drinking water and swimming pools because chlorine is used to disinfect water...Soon after the war [World War I], however, chlorine became the premier disinfectant, controlling deadly diseases such as typhoid fever that were being spread by polluted drinking water. 2
http://www.w3.org/ns/prov#wasQuotedFrom
  • chemistry-reference.com