<|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:
3.3 5.5 4.5
90 90 90
Zr
0.21 0.00 0.51
Zr
0.07 0.76 0.87
Pt
0.68 0.76 0.62
Br
0.37 0.00 0.78
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.3 5.5 4.5
90 90 90
Zr
0.21 0.00 0.51
Zr
0.07 0.76 0.87
Pt
0.68 0.76 0.62
Br
0.37 0.00 0.78
Identify the crystal system.