I took the index of the words, transformed the number to binary, extra a few zeros, calculated the sha256 digest, took the initial Section of the hexadecimal to convert it to binary, additional 3 zeros into the eight digits from the binary and bought 00000010011 which translates to 19 in https://ok-social.com/story4472615/the-2-minute-rule-for-bip39-all-words