About: http://webisa.webdatacommons.org/31383313

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	A variety of mechanisms have been employed to respond to the correction signal and adjust an optical element, such as a mirror or lens, to maintain tracking registration.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es