I took the index of the words, converted the number to binary, additional 3 zeros, calculated the sha256 digest, took the primary part of the hexadecimal to convert it to binary, added a few zeros into the 8 digits from the binary and received 00000010011 which translates to 19 in https://rotatesites.com/story21011366/examine-this-report-on-bip39-passphrase