You are given a code:

def main_solution(x):
    return func_9(func_13('edtgk', '|'))

Can you predict the output of `main_solution("ouqz")` 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": "ouqz"}, "ref_output": "e|d|t|g|kk|g|t|d|e", "ref_code": "def main_solution(x):\n    return func_9(func_13('edtgk', '|'))", "funcname": "main_solution"}
rule