4

Pb     -0.041051802964672      0.202593906301979      0.065041288724572
Pb      1.208659435777255      1.365502112363494      0.222770837519064
Pb      1.539868552583854      0.393591510488740      1.695819204081890
Pb      0.138921387501087      1.769594050077381      1.676262330459124