I took the index in the words, transformed the selection to binary, additional three zeros, calculated the sha256 digest, took the initial Section of the hexadecimal to convert it to binary, included a few zeros to your 8 digits of your binary and bought 00000010011 which interprets to 19 in https://altbookmark.com/story20426264/helping-the-others-realize-the-advantages-of-bip39-seed-phrase-mnemonics-generator