<|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:
7.1 7.1 3.9
90 90 110
Sr
0.01 0.07 0.97
Sr
0.01 0.93 0.97
Ca
0.00 0.00 0.00
La
0.03 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
7.1 7.1 3.9
90 90 110
Sr
0.01 0.07 0.97
Sr
0.01 0.93 0.97
Ca
0.00 0.00 0.00
La
0.03 0.00 0.00
Identify the crystal system.