<|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:
5.4 5.4 5.4
59 59 59
Mg
0.00 0.00 0.00
Nb
0.82 0.82 0.87
Nb
0.82 0.87 0.82
Nb
0.87 0.82 0.82
Nb
0.87 0.87 0.87
P
0.77 0.77 0.77
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
5.4 5.4 5.4
59 59 59
Mg
0.00 0.00 0.00
Nb
0.82 0.82 0.87
Nb
0.82 0.87 0.82
Nb
0.87 0.82 0.82
Nb
0.87 0.87 0.87
P
0.77 0.77 0.77
Identify the crystal system.