About: http://webisa.webdatacommons.org/233172305

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	The apertures may be circular apertures in the flow tube, or may be another shape such as square, hexagonal, oval, or other shape.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com