You are given a code:

def main_solution(x):
    return func_13(func_5(x, 'qpyr'), '_')

Can you predict the output of `main_solution("lsawzvxs")` 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": "lsawzvxs"}, "ref_output": "q_p_y_r_l_s_a_w_z_v_x_s", "ref_code": "def main_solution(x):\n    return func_13(func_5(x, 'qpyr'), '_')", "funcname": "main_solution"}
rule