<|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:
6.4 5.4 7.5
90 90 90
Hg
0.00 0.76 0.52
Hg
0.18 0.68 0.77
P
0.54 0.80 0.70
P
0.64 0.64 0.45
P
0.71 0.64 0.45
P
0.82 0.80 0.70
P
0.00 0.33 0.04
P
0.18 0.11 0.29
P
0.00 0.48 0.18
P
0.18 0.96 0.94
Se
0.00 0.72 0.57
Se
0.18 0.72 0.33
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
6.4 5.4 7.5
90 90 90
Hg
0.00 0.76 0.52
Hg
0.18 0.68 0.77
P
0.54 0.80 0.70
P
0.64 0.64 0.45
P
0.71 0.64 0.45
P
0.82 0.80 0.70
P
0.00 0.33 0.04
P
0.18 0.11 0.29
P
0.00 0.48 0.18
P
0.18 0.96 0.94
Se
0.00 0.72 0.57
Se
0.18 0.72 0.33
Identify the crystal system.