PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The pH is preferably kept below 10, for example at from 7 to 9.5, during the reaction in the aqueous solution.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com