I took the index on the words, transformed the variety to binary, extra three zeros, calculated the sha256 digest, took the primary Section of the hexadecimal to transform it to binary, extra a few zeros for the 8 digits in the binary and acquired 00000010011 which interprets to 19 in https://bookmarkcitizen.com/story19477699/the-basic-principles-of-bip39-passphrase-generator