PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Students will use portable testing apparatus to determine indicators such as dissolved oxygen, pH, conductivity, temperature, hardness, alkalinity, and total chlorine.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ck12.org