<|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:
5.4 5.4 3.3
90 90 107
Hf
0.20 0.00 0.00
Ga
0.00 0.00 0.00
Br
0.60 0.81 0.65
Br
0.60 0.19 0.65
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
5.4 5.4 3.3
90 90 107
Hf
0.20 0.00 0.00
Ga
0.00 0.00 0.00
Br
0.60 0.81 0.65
Br
0.60 0.19 0.65
Identify the crystal system.