PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When working with live rock it is important to know that the changes in conditions and the level of curring it has had will determine the amount of die off it produces, but anything that was previously on the rock such as algae and other matter will begin to break down, which then turns to ammonia and must go through the nitrogen cycle process to properly break down and become safe and stable.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tropicalfishkeeping.com