I took the index on the words, transformed the quantity to binary, included three zeros, calculated the sha256 digest, took the first Portion of the hexadecimal to convert it to binary, additional a few zeros into the eight digits of your binary and bought 00000010011 which translates to 19 in https://bookmarkport.com/story21096383/helping-the-others-realize-the-advantages-of-bip39-mnemonic-phrase-tool