PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In any event, ozone is a highly reactive, oxidative gas with many industrial applications, with OSHA recommended guidelines for safe exposure of less than 0.10 ppm.
http://www.w3.org/ns/prov#wasQuotedFrom
  • scienceblogs.com