<|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:
3.5 3.7 3.9
90 90 90
Li
0.00 0.00 0.00
Sn
0.00 0.83 0.97
B
0.73 0.83 0.00
B
0.73 0.00 0.97
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.5 3.7 3.9
90 90 90
Li
0.00 0.00 0.00
Sn
0.00 0.83 0.97
B
0.73 0.83 0.00
B
0.73 0.00 0.97
Identify the crystal system.