<|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:
6.2 6.2 6.2
141 141 55
Na
0.00 0.04 0.77
Na
0.04 0.00 0.77
Zr
0.00 0.00 0.00
Au
0.00 0.00 0.54
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
6.2 6.2 6.2
141 141 55
Na
0.00 0.04 0.77
Na
0.04 0.00 0.77
Zr
0.00 0.00 0.00
Au
0.00 0.00 0.54
Identify the crystal system.