I took the index of your words, converted the number to binary, additional 3 zeros, calculated the sha256 digest, took the main Portion of the hexadecimal to transform it to binary, additional a few zeros towards the eight digits of your binary and bought 00000010011 which translates to 19 in https://socialdosa.com/story8820220/facts-about-bip39-seed-phrase-github-revealed