About: http://webisa.webdatacommons.org/310124891

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 lead (141) may be made out of a rigid material, such as metal or ceramic.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca