PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In the aeration process using the micro-bubble generating system with the above functions, operation is basically controlled by adjusting the air supply quantity or the number of the micro-bubble generating systems to be installed, while it is necessary to efficiently dissolve gas such as air, carbon dioxide, etc. into water and further to promote circulation of the water.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com