PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The combination is particularly ideal for situations when continuing to add CO2 could result in dangerously low pH levels.
http://www.w3.org/ns/prov#wasQuotedFrom
  • plantedtank.net