About: http://webisa.webdatacommons.org/17424851

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Air diffusers may be in a variety of forms, including metal or plastic pipes with holes therein, such as a sparge ring, and nylon cloth or mesh rings containing gravel.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es