<|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:
10.5 10.5 10.5
18 18 18
Re
0.00 0.00 0.55
Sb
0.00 0.00 0.00
Pb
0.00 0.00 0.73
Pb
0.00 0.00 0.37
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
10.5 10.5 10.5
18 18 18
Re
0.00 0.00 0.55
Sb
0.00 0.00 0.00
Pb
0.00 0.00 0.73
Pb
0.00 0.00 0.37
Identify the crystal system.