<|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:
6.6 6.6 6.6
150 136 53
Y
0.70 0.00 0.04
Y
0.00 0.00 0.51
Sn
0.00 0.00 0.12
Os
0.00 0.45 0.05
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
6.6 6.6 6.6
150 136 53
Y
0.70 0.00 0.04
Y
0.00 0.00 0.51
Sn
0.00 0.00 0.12
Os
0.00 0.45 0.05
Identify the crystal system.