<|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:
4.5 4.5 5.4
108 108 53
Y
0.05 0.00 0.54
Al
0.00 0.00 0.00
Ga
0.55 0.00 0.87
Ga
0.54 0.00 0.21
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
4.5 4.5 5.4
108 108 53
Y
0.05 0.00 0.54
Al
0.00 0.00 0.00
Ga
0.55 0.00 0.87
Ga
0.54 0.00 0.21
Identify the crystal system.