About: http://webisa.webdatacommons.org/81996911

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	Often the aperture will be generally rectangular in shape, with the length of the aperture being up to 400 times, for example 5 to 10 times, its width at its narrowest point, which may be for example 0.005 to 0.200 inch.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com