<http://webisa.webdatacommons.org/prov/438843819> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/196881395> . <http://webisa.webdatacommons.org/196881395> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.es> . <http://webisa.webdatacommons.org/196881395> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/196881395> <http://www.w3.org/ns/prov#value> "Optional layer 52 may be any suitable reflective material or may comprise particles of a white pigment such as titanium dioxide." .