<http://webisa.webdatacommons.org/81195973> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/81195973> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.com> . <http://webisa.webdatacommons.org/prov/455912813> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/81195973> . <http://webisa.webdatacommons.org/81195973> <http://www.w3.org/ns/prov#value> "For example, layer 14 can be removed by wet etching in a solution such as hydrofluoric acid and water." . <http://webisa.webdatacommons.org/prov/296026171> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/81195973> .