I took the index in the words, converted the selection to binary, included 3 zeros, calculated the sha256 digest, took the main Component of the hexadecimal to convert it to binary, additional 3 zeros for the 8 digits of your binary and bought 00000010011 which interprets to 19 in decimal. https://hylistings.com/story20038028/examine-this-report-on-bip39-passphrase