#Pb__lead__atomic_number_82  a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull gray; "the children were playing with lead soldiers"
  supertype:  metallic_element__metal  any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
  substance of:  cerussite  galena
  subtype:  hard_lead  unrefined lead that is hard because of the impurities it contains
  subtype:  antimonial_lead__hard_lead  a lead alloy that contains about 5% antimony
     subtype:  grid_metal  a kind of hard lead that is used for grids in storage batteries
  subtype:  pig_lead__piglead  lead that is cast in pigs

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