<|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:
5.4 5.4 2.7
99 99 117
Ca
0.00 0.00 0.00
V
0.98 0.70 0.26
V
0.98 0.30 0.26
Os
0.78 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
5.4 5.4 2.7
99 99 117
Ca
0.00 0.00 0.00
V
0.98 0.70 0.26
V
0.98 0.30 0.26
Os
0.78 0.00 0.00
Identify the crystal system.