<|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:
3.3 4.6 4.9
90 90 90
Nb
0.00 0.00 0.00
Hg
0.67 0.00 0.44
Hg
0.00 0.28 0.44
Ru
0.67 0.28 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.3 4.6 4.9
90 90 90
Nb
0.00 0.00 0.00
Hg
0.67 0.00 0.44
Hg
0.00 0.28 0.44
Ru
0.67 0.28 0.00
Identify the crystal system.