<|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:
3.2 3.2 7.5
90 90 90
Tl
0.60 0.60 0.45
P
0.00 0.00 0.77
P
0.60 0.60 0.83
Pt
0.00 0.00 0.21
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.2 3.2 7.5
90 90 90
Tl
0.60 0.60 0.45
P
0.00 0.00 0.77
P
0.60 0.60 0.83
Pt
0.00 0.00 0.21
Identify the crystal system.