You are given a code:

def main_solution(x):
    return func_5(func_13('yxsren', '|'), 'kv')

Can you predict the output of `main_solution("wlxny")` 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": "wlxny"}, "ref_output": "kvy|x|s|r|e|n", "ref_code": "def main_solution(x):\n    return func_5(func_13('yxsren', '|'), 'kv')", "funcname": "main_solution"}
rule