You are given a code:

def main_solution(x):
    return func_5('bnqlmn', 'uvtr')

Can you predict the output of `main_solution("sdrtknvxxv")` without writing any code? Please reason and put your final answer in the following json format: {"output": <your output>}, where <your output> should be the final string.
user
{"ref_input": {"x": "sdrtknvxxv"}, "ref_output": "uvtrbnqlmn", "ref_code": "def main_solution(x):\n    return func_5('bnqlmn', 'uvtr')", "funcname": "main_solution"}
rule