PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Figure 2 shows the same sort of model where nitrate starts at 0 ppm, and then is allowed to accumulate by 0.1 ppm per day (approximating values potentially encountered in typical reef aquaria, where over the course of a few months, nitrate might accumulate to 5-10 ppm).
http://www.w3.org/ns/prov#wasQuotedFrom
  • reefkeeping.com