<|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:
9.1 9.1 9.1
19 19 19
Nb
0.00 0.00 0.01
Nb
0.00 0.00 0.86
Cd
0.00 0.00 0.43
Tc
0.00 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
9.1 9.1 9.1
19 19 19
Nb
0.00 0.00 0.01
Nb
0.00 0.00 0.86
Cd
0.00 0.00 0.43
Tc
0.00 0.00 0.00
Identify the crystal system.