About: http://webisa.webdatacommons.org/428324609

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	Although the diaphram and its rib are preferably circular, they may have other shapes, such as square or rectangular.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com