About: http://webisa.webdatacommons.org/384358952

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 lens holder retains a lens, or other optical element, in spaced relation from the screen and is adjustable relative thereto.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com