About: http://webisa.webdatacommons.org/248708074

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 discharge from the unsubmerged sections of the pipe 24 tend to clean the pipe perforations of possible blockage with solids material, provide media surface-aeration, and flush out effluent gas such as carbon dioxide.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com