About: http://webisa.webdatacommons.org/12422402

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	In this preferred embodiment, the diaphragm 30 is shown as a square but it may have other shapes such as a rectangle or triangle.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com