I took the index of your words, converted the number to binary, extra 3 zeros, calculated the sha256 digest, took the main Section of the hexadecimal to transform it to binary, additional a few zeros towards the 8 digits on the binary and got 00000010011 which translates to 19 in https://postheaven.net/tiablexcen/mastering-your-copyright-protection-the-essential-overview-to-bip39-passphrases