I took the index on the words, transformed the variety to binary, extra a few zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to convert it to binary, additional three zeros for the 8 digits with the binary and acquired 00000010011 which translates to 19 https://livebackpage.com/story4365264/a-review-of-bip39-passphrase