<|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:
5.7 5.7 3.1
99 99 94
K
0.00 0.00 0.00
Nb
0.88 0.00 0.00
Sb
0.55 0.11 0.52
Sb
0.55 0.89 0.52
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
5.7 5.7 3.1
99 99 94
K
0.00 0.00 0.00
Nb
0.88 0.00 0.00
Sb
0.55 0.11 0.52
Sb
0.55 0.89 0.52
Identify the crystal system.