About: http://webisa.webdatacommons.org/194977005

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	Presently, those materials such as silicon or metals have widely been used for the tip.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au