<|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:
2.6 2.6 11.2
90 90 90
Na
0.31 0.31 0.70
Na
0.31 0.31 0.53
Ta
0.00 0.00 0.62
Cr
0.00 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
2.6 2.6 11.2
90 90 90
Na
0.31 0.31 0.70
Na
0.31 0.31 0.53
Ta
0.00 0.00 0.62
Cr
0.00 0.00 0.00
Identify the crystal system.