I took the index in the words, converted the variety to binary, extra 3 zeros, calculated the sha256 digest, took the main Element of the hexadecimal to transform it to binary, included a few zeros to your eight digits of the binary and obtained 00000010011 which interprets to 19 in https://socialmediastore.net/story19422373/top-guidelines-of-bip39-word-list-pdf