4

Pb      0.202102545426780      0.182202042859078      0.024653190692247
Pb      1.700058545539899      1.527241716115138     -0.180653494765954
Pb      1.202963321929585      0.220832918651045      1.362211079048700
Pb      0.191147676761394      1.422991499619337      1.176205461669214