PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • (c) the inhaled concentration of nitric oxide is at least 1 ppm, more preferably at least 20 ppm, and most preferably at least 80 ppm, with the concentration not exceeding 180 ppm of nitric oxide (such concentration being monitored by a technique such as chemiluminescence);
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.co.uk