I took the index of the words, transformed the amount to binary, included three zeros, calculated the sha256 digest, took the main Element of the hexadecimal to convert it to binary, extra three zeros for the 8 digits in the binary and bought 00000010011 which interprets to 19 in decimal. https://exactlybookmarks.com/story18988009/examine-this-report-on-bip39-passphrase