You are given a code:

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

Can you predict the output of `main_solution("dyrxusizdb")` 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": "dyrxusizdb"}, "ref_output": "yzd|y|r|x|u|s|i|z|d|b", "ref_code": "def main_solution(x):\n    return func_5(func_13(x, '|'), 'yz')", "funcname": "main_solution"}
rule