4

Pb      0.004582013373965      0.257167278410892      0.096269782182653
Pb      1.261270408573332      1.791196033875381      0.064414920724654
Pb      1.384421091225317      0.008688561878455      1.615783876681230
Pb     -0.117991624861161      1.347214120630074      1.299683709405598