<|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:
7.5 7.5 7.5
154 154 37
Li
0.00 0.00 0.29
Sb
0.00 0.00 0.81
Br
0.00 0.00 0.24
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
7.5 7.5 7.5
154 154 37
Li
0.00 0.00 0.29
Sb
0.00 0.00 0.81
Br
0.00 0.00 0.24
Identify the crystal system.