<|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:
3.7 4.9 4.9
90 90 90
Y
0.86 0.43 0.00
Hf
0.00 0.43 0.46
Hf
0.86 0.00 0.46
Cr
0.00 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.7 4.9 4.9
90 90 90
Y
0.86 0.43 0.00
Hf
0.00 0.43 0.46
Hf
0.86 0.00 0.46
Cr
0.00 0.00 0.00
Identify the crystal system.