<|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:
6.8 6.8 6.8
146 146 47
K
0.93 0.00 0.10
K
0.00 0.93 0.10
Ta
0.00 0.00 0.19
Tc
0.00 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
6.8 6.8 6.8
146 146 47
K
0.93 0.00 0.10
K
0.00 0.93 0.10
Ta
0.00 0.00 0.19
Tc
0.00 0.00 0.00
Identify the crystal system.