<|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
149 128 61
Na
0.00 0.00 0.25
Tl
0.00 0.00 0.19
Mo
0.00 0.00 0.28
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
5.4 5.4 5.4
149 128 61
Na
0.00 0.00 0.25
Tl
0.00 0.00 0.19
Mo
0.00 0.00 0.28
Identify the crystal system.