PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • i have read here that the best way to lower nitrates are water changes and heavily planted tanks. well, i checked my nitrates last night (~20ppm) and did a 50% water change. this morning, i checked...
http://www.w3.org/ns/prov#wasQuotedFrom
  • plantedtank.net