About: http://webisa.webdatacommons.org/67662449

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 signal recording layer 102 may be any of a rewritable type, a write-once type, and a read-only type having a reflecting layer mainly composed of Al or Ag.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com