About: http://webisa.webdatacommons.org/374942654

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	First, it is required to prepare a cubic single crystal substrate (for example, a gallium arsenide single crystal substrate) whose surface is provided substantially parallel with a {1 1 1} side whose surface is a crystal.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com