About: http://webisa.webdatacommons.org/313393531

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 active material of a charged positive plate consists of an oxide of lead, while the grid composition is lead or an alloy of lead with such other metals as calcium or antimony.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com