4

Pb      0.073279367294265      0.199897231195555      0.129611995968939
Pb      1.374258590869643      1.606890965390357      0.297684540097517
Pb      1.482736906663002     -0.139343332569972      1.670896112097038
Pb      0.262353385949982      1.644327690258510      1.710053546513952