<|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:
4.0 4.0 9.4
90 90 90
Sr
0.00 0.00 0.81
Sr
0.98 0.98 0.89
Mg
0.00 0.00 0.17
Sn
0.98 0.98 0.60
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
4.0 4.0 9.4
90 90 90
Sr
0.00 0.00 0.81
Sr
0.98 0.98 0.89
Mg
0.00 0.00 0.17
Sn
0.98 0.98 0.60
Identify the crystal system.