<|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:
3.1 3.1 8.6
90 90 113
Ti
0.00 0.00 0.37
Nb
0.00 0.00 0.50
Nb
0.71 0.00 0.44
Br
0.71 0.00 0.28
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.1 3.1 8.6
90 90 113
Ti
0.00 0.00 0.37
Nb
0.00 0.00 0.50
Nb
0.71 0.00 0.44
Br
0.71 0.00 0.28
Identify the crystal system.