<|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 5.7
108 108 51
Be
0.34 0.00 0.78
Be
0.66 0.00 0.52
Sn
0.00 0.00 0.00
Pb
1.00 0.00 0.65
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
4.5 4.5 5.7
108 108 51
Be
0.34 0.00 0.78
Be
0.66 0.00 0.52
Sn
0.00 0.00 0.00
Pb
1.00 0.00 0.65
Identify the crystal system.