<|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:
3.7 3.7 6.5
90 90 90
Al
0.87 0.87 0.77
Al
0.87 0.87 0.73
In
0.00 0.00 0.00
Sb
0.00 0.00 0.25
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.7 3.7 6.5
90 90 90
Al
0.87 0.87 0.77
Al
0.87 0.87 0.73
In
0.00 0.00 0.00
Sb
0.00 0.00 0.25
Identify the crystal system.