<|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:
3.0 5.5 6.0
90 100 90
Ca
0.04 0.77 0.49
Ca
0.87 0.77 0.39
Ta
0.96 0.00 0.94
Ti
0.00 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.0 5.5 6.0
90 100 90
Ca
0.04 0.77 0.49
Ca
0.87 0.77 0.39
Ta
0.96 0.00 0.94
Ti
0.00 0.00 0.00
Identify the crystal system.