I took the index from the words, converted the range to binary, added a few zeros, calculated the sha256 digest, took the initial Section of the hexadecimal to transform it to binary, included three zeros towards the 8 digits with the binary and obtained 00000010011 which translates to 19 in https://bookmarkingquest.com/story18745316/the-2-minute-rule-for-bip39-all-words