I took the index of the words, converted the number to binary, extra three zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to convert it to binary, included 3 zeros towards the eight digits of the binary and obtained 00000010011 which translates to 19 in https://gogogobookmarks.com/story18840524/examine-this-report-on-bip39-mnemonic-phrase-tool