<|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:
4.0 4.0 4.1
91 91 43
Al
0.00 0.00 0.00
Cr
0.67 0.00 0.05
B
0.46 0.00 0.08
B
0.88 0.00 0.02
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
4.0 4.0 4.1
91 91 43
Al
0.00 0.00 0.00
Cr
0.67 0.00 0.05
B
0.46 0.00 0.08
B
0.88 0.00 0.02
Identify the crystal system.