<|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:
3.0 3.0 7.8
90 90 96
Ta
0.98 0.00 0.18
Ta
0.98 0.00 0.63
Co
0.00 0.00 0.00
Sn
0.00 0.00 0.91
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.0 3.0 7.8
90 90 96
Ta
0.98 0.00 0.18
Ta
0.98 0.00 0.63
Co
0.00 0.00 0.00
Sn
0.00 0.00 0.91
Identify the crystal system.