<|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:
6.1 6.1 6.1
147 147 45
Li
0.00 0.00 0.00
Be
0.00 0.00 0.03
Be
0.00 0.00 0.18
Br
0.00 0.00 0.61
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
6.1 6.1 6.1
147 147 45
Li
0.00 0.00 0.00
Be
0.00 0.00 0.03
Be
0.00 0.00 0.18
Br
0.00 0.00 0.61
Identify the crystal system.