<|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:
3.7 3.5 6.6
90 91 90
Ba
0.16 0.77 0.47
Mn
0.32 0.00 0.35
Si
0.46 0.77 0.54
Si
0.33 0.00 0.46
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.7 3.5 6.6
90 91 90
Ba
0.16 0.77 0.47
Mn
0.32 0.00 0.35
Si
0.46 0.77 0.54
Si
0.33 0.00 0.46
Identify the crystal system.