About: http://webisa.webdatacommons.org/406572901

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 base 30 could be constructed of any suitable material or combination of materials, e.g. various types of plastics, metals or woods.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com