4

Pb     -0.210150342778784      0.181071097350948      0.131024784912768
Pb      1.382249449657511      1.761207556301597      0.011937514481797
Pb      1.752267483309587      0.043965006141747      1.572361421827484
Pb      0.203793371679378      1.738545955949781      1.269221800327246