<|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:
3.6 5.0 6.4
90 94 90
Al
0.00 0.00 0.00
Tl
0.58 0.50 0.80
Tl
0.56 0.50 0.56
Br
0.75 0.00 0.18
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.6 5.0 6.4
90 94 90
Al
0.00 0.00 0.00
Tl
0.58 0.50 0.80
Tl
0.56 0.50 0.56
Br
0.75 0.00 0.18
Identify the crystal system.