<|im_start|>system
Please reason step by step, and put your final answer within \boxed{}.<|im_end|>
<|im_start|>user
Given the following crystal representation:
3.4 3.9 8.1
90 90 90
Hg
0.68 0.97 0.02
Hg
0.00 0.00 0.86
As
0.00 0.00 0.05
Pb
0.68 0.97 0.35
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.4 3.9 8.1
90 90 90
Hg
0.68 0.97 0.02
Hg
0.00 0.00 0.86
As
0.00 0.00 0.05
Pb
0.68 0.97 0.35
Identify the crystal system.