<|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:
7.2 7.2 5.2
109 109 26
Hf
0.14 0.00 0.43
Br
0.00 0.00 0.00
Br
0.07 0.00 0.18
Br
0.20 0.00 0.68
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
7.2 7.2 5.2
109 109 26
Hf
0.14 0.00 0.43
Br
0.00 0.00 0.00
Br
0.07 0.00 0.18
Br
0.20 0.00 0.68
Identify the crystal system.