You are given a code:

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

Can you predict the output of `main_solution("nrraaukew")` 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": "nrraaukew"}, "ref_output": "d|z|o|n|r|r|a|a|u|k|e|w", "ref_code": "def main_solution(x):\n    return func_13(func_5(x, 'dzo'), '|')", "funcname": "main_solution"}
rule