<|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 6.8
108 108 59
Sr
0.66 0.00 0.14
Ni
0.00 0.00 0.00
Pb
0.10 0.00 0.32
Pb
0.22 0.00 0.97
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
4.5 4.5 6.8
108 108 59
Sr
0.66 0.00 0.14
Ni
0.00 0.00 0.00
Pb
0.10 0.00 0.32
Pb
0.22 0.00 0.97
Identify the crystal system.