<|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:
2.8 2.8 6.7
90 90 90
Na
0.40 0.40 0.94
Ni
0.00 0.00 0.51
Ni
0.40 0.40 0.17
B
0.00 0.00 0.47
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
2.8 2.8 6.7
90 90 90
Na
0.40 0.40 0.94
Ni
0.00 0.00 0.51
Ni
0.40 0.40 0.17
B
0.00 0.00 0.47
Identify the crystal system.