PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • TDS can originate from multiple sources: natural sources, sewage, run-off (urban or agricultural), industrial waste, chemicals from water treatment facilities, water delivery systems (plumbing), waste from the animals in our aquariums, fertilizers and other additives we may add as part of aquarium upkeep, even rocks or other aquascaping materials, such as driftwood, almond leaves, etc.
http://www.w3.org/ns/prov#wasQuotedFrom
  • shrimpnow.com