<|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:
4.6 4.6 4.6
59 59 59
Ti
0.63 0.63 0.63
Si
0.00 0.00 0.00
Bi
0.90 0.90 0.90
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
4.6 4.6 4.6
59 59 59
Ti
0.63 0.63 0.63
Si
0.00 0.00 0.00
Bi
0.90 0.90 0.90
Identify the crystal system.