<|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:
8.8 8.8 8.8
20 20 20
Zr
0.00 0.00 0.00
Sb
0.00 0.00 0.86
Os
0.00 0.00 0.27
Os
0.00 0.00 0.45
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
8.8 8.8 8.8
20 20 20
Zr
0.00 0.00 0.00
Sb
0.00 0.00 0.86
Os
0.00 0.00 0.27
Os
0.00 0.00 0.45
Identify the crystal system.