<|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:
3.5 3.8 4.3
90 90 90
Be
0.00 0.89 0.15
Be
0.00 0.00 0.00
Mo
0.77 0.00 0.15
Pb
0.77 0.89 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.5 3.8 4.3
90 90 90
Be
0.00 0.89 0.15
Be
0.00 0.00 0.00
Mo
0.77 0.00 0.15
Pb
0.77 0.89 0.00
Identify the crystal system.