<|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:
3.3 3.3 6.5
90 90 93
Y
0.00 0.00 0.00
Tl
0.00 0.00 0.25
Ni
0.28 0.00 0.68
Ni
0.28 0.00 0.81
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.3 3.3 6.5
90 90 93
Y
0.00 0.00 0.00
Tl
0.00 0.00 0.25
Ni
0.28 0.00 0.68
Ni
0.28 0.00 0.81
Identify the crystal system.