<|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:
6.4 6.4 6.4
59 59 59
K
0.26 0.26 0.26
K
0.78 0.78 0.78
Ba
0.52 0.52 0.52
Nb
0.00 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
6.4 6.4 6.4
59 59 59
K
0.26 0.26 0.26
K
0.78 0.78 0.78
Ba
0.52 0.52 0.52
Nb
0.00 0.00 0.00
Identify the crystal system.