4

Pb      0.200713406750863     -0.171009384989599      0.402720543721181
Pb      1.589423439016807      1.311510480580032      0.267488620667823
Pb      1.213217129306003      0.282191409655313      1.132248386507396
Pb      0.203841316488826      1.310460055564382      0.937903888389277