<|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:
3.6 3.6 7.1
90 90 119
K
0.00 0.00 0.00
Lu
1.00 0.07 0.55
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.6 3.6 7.1
90 90 119
K
0.00 0.00 0.00
Lu
1.00 0.07 0.55
Identify the crystal system.