<|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:
9.0 9.0 9.0
19 19 19
Ca
0.00 0.00 0.00
Cd
0.00 0.00 0.20
Co
0.00 0.00 0.51
Co
0.00 0.00 0.90
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
9.0 9.0 9.0
19 19 19
Ca
0.00 0.00 0.00
Cd
0.00 0.00 0.20
Co
0.00 0.00 0.51
Co
0.00 0.00 0.90
Identify the crystal system.