PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Cleanrooms have extremely low level of environmental contaminants such as dust, aerosol particles, airborne microbes, chemical vapors and other industrial pollutants.
http://www.w3.org/ns/prov#wasQuotedFrom
  • transparencymarketresearch.com