<|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:
2.8 5.1 5.4
90 90 90
Na
0.07 0.00 0.47
Mg
0.45 0.00 1.00
Mg
0.44 0.53 0.55
Cr
1.00 0.53 0.38
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
2.8 5.1 5.4
90 90 90
Na
0.07 0.00 0.47
Mg
0.45 0.00 1.00
Mg
0.44 0.53 0.55
Cr
1.00 0.53 0.38
Identify the crystal system.