PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • There are some severe safety problems by using high pressure foam cleaning: High pH, aggressive cleaning agents, aerosol formation and mechanical noise and damage are the most important ones, but there are also environmental problems connected to high pressure foam cleaning due to a large water consumption and thereby effluent treatment.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com.au