You are given a code:

def main_solution(x):
    return func_5('meoh', 'wenh')

Can you predict the output of `main_solution("ibv")` 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": "ibv"}, "ref_output": "wenhmeoh", "ref_code": "def main_solution(x):\n    return func_5('meoh', 'wenh')", "funcname": "main_solution"}
rule