About: http://webisa.webdatacommons.org/276679196

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	The guard ring can be made of suitable materials such as silicon, metal, silicon coated materials, quartz, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com