<|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:
9.1 9.1 9.1
25 25 25
P
0.00 0.00 0.00
Pb
0.00 0.00 0.09
Pb
0.00 0.00 0.20
Pb
0.00 0.00 0.32
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
9.1 9.1 9.1
25 25 25
P
0.00 0.00 0.00
Pb
0.00 0.00 0.09
Pb
0.00 0.00 0.20
Pb
0.00 0.00 0.32
Identify the crystal system.