About: http://webisa.webdatacommons.org/365938289

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	Alternatively, the substrate 12 may be formed of a material such as aluminum which reflects light at the recording wavelength, thus combining the functions of the substrate 12 and the light reflective layer 32 of FIGS. 2 and 3.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr