About: http://webisa.webdatacommons.org/405132342

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	perpendicular to the information face of the disk 100, and the tracking operation is an operation of moving the objective lens 110 in the radial direction of the disk 100.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com