About: http://webisa.webdatacommons.org/222034302

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	rmanium, gallium arsenide, or other materials that are well-known in the art.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com