About: http://webisa.webdatacommons.org/337003276

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	Wafer substrate 503 may comprise silicon, gallium arsenide, or other semiconductor, or an insulator, such as silicon dioxide, glass, or magnesium oxide (MgO).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com