<|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:
4.7 4.7 4.7
122 122 86
Mg
0.28 0.00 0.73
Mg
0.00 0.28 0.73
Cr
0.00 0.00 0.00
Ag
0.00 0.00 0.45
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
4.7 4.7 4.7
122 122 86
Mg
0.28 0.00 0.73
Mg
0.00 0.28 0.73
Cr
0.00 0.00 0.00
Ag
0.00 0.00 0.45
Identify the crystal system.