4

Pb      0.263375585162633      0.212117311544644      0.295946725469784
Pb      1.541469329066273      1.490428538959548      0.241229004970342
Pb      1.520173148964380      0.043761705930754      1.220515293547215
Pb      0.205572658295035      1.307229321264967      1.261726672972027