You are given a code:

def main_solution(x):
    return func_20(func_17(x), func_13('sjssgb', '|'))

Can you predict the output of `main_solution("dmqxvfob")` 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": "dmqxvfob"}, "ref_output": "bso|fjv|xsq|msd|g|b", "ref_code": "def main_solution(x):\n    return func_20(func_17(x), func_13('sjssgb', '|'))", "funcname": "main_solution"}
rule