<|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
109 109 109
Na
0.79 0.21 0.79
Na
0.79 0.79 0.79
Na
0.79 0.79 0.21
Na
0.21 0.79 0.79
Al
0.00 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
6.2 6.2 6.2
109 109 109
Na
0.79 0.21 0.79
Na
0.79 0.79 0.79
Na
0.79 0.79 0.21
Na
0.21 0.79 0.79
Al
0.00 0.00 0.00
Identify the crystal system.