<|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:
2.7 2.7 9.4
90 90 117
Na
0.00 0.00 0.00
Cu
0.00 0.00 0.68
Pt
0.43 0.00 0.52
Pt
0.43 0.00 0.84
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
2.7 2.7 9.4
90 90 117
Na
0.00 0.00 0.00
Cu
0.00 0.00 0.68
Pt
0.43 0.00 0.52
Pt
0.43 0.00 0.84
Identify the crystal system.