PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Sources of oxidizing agents include those that typically generate free radicals (e.g., calcium peroxide, sodium peroxide, ozone) and metal catalysts including metal salts, iron oxyhydroxides, iron chelates, and combinations thereof.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com