I took the index of the words, converted the quantity to binary, added three zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to convert it to binary, additional 3 zeros on the 8 digits of your binary and bought 00000010011 which translates to 19 in https://bookmarkrange.com/story20216628/the-ultimate-guide-to-bip39-seed-phrase-github