After finding the mnemonic, you must find a 13th/25th word for this mnemonic. To find that, you will do the same thing as in the first part of this challenge:
derive_this_to_generate_the_passphrase = b" ".join([
b"word 1",
b"word 2",
b"word 3",
b"word 4",
b"word 5"
])
passphrase = solution(derive_this_to_generate_the_passphrase)
print(passphrase)