<|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:
5.1 3.7 7.6
90 108 90
K
0.74 0.83 0.88
K
0.69 0.00 0.64
Mn
0.24 0.83 0.05
B
0.27 0.00 0.30
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
5.1 3.7 7.6
90 108 90
K
0.74 0.83 0.88
K
0.69 0.00 0.64
Mn
0.24 0.83 0.05
B
0.27 0.00 0.30
Identify the crystal system.