<|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:
4.9 4.9 2.6
103 103 119
Al
0.00 0.00 0.00
Cu
0.65 0.13 0.16
Cu
0.65 0.87 0.16
Ni
0.47 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
4.9 4.9 2.6
103 103 119
Al
0.00 0.00 0.00
Cu
0.65 0.13 0.16
Cu
0.65 0.87 0.16
Ni
0.47 0.00 0.00
Identify the crystal system.