PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, I know plastic is made mostly of carbon and hydrogen I believe, so doubtful it would contain enough nitrogen to cause any impact on your ammonia, nitrite, and nitrate levels.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tropicalfishkeeping.com