<|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:
2.9 5.5 5.5
90 103 90
Ba
0.80 0.00 0.66
Na
0.00 0.00 0.00
Tc
0.71 0.74 0.03
Tc
0.89 0.74 0.29
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
2.9 5.5 5.5
90 103 90
Ba
0.80 0.00 0.66
Na
0.00 0.00 0.00
Tc
0.71 0.74 0.03
Tc
0.89 0.74 0.29
Identify the crystal system.