About: http://webisa.webdatacommons.org/101290534

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 outer and inner layers 450 and 452 may be removed chemically, by masking off a portion of the layers and exposing the unmasked portions to a solvent, or through other means such as a laser.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au