<|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
138 138 59
Eu
0.00 0.00 0.00
Ni
0.20 0.00 0.69
Ni
0.00 0.20 0.69
Sb
0.00 0.00 0.91
Sb
0.00 0.00 0.87
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
6.2 6.2 6.2
138 138 59
Eu
0.00 0.00 0.00
Ni
0.20 0.00 0.69
Ni
0.00 0.20 0.69
Sb
0.00 0.00 0.91
Sb
0.00 0.00 0.87
Identify the crystal system.