I took the index from the words, converted the quantity to binary, additional 3 zeros, calculated the sha256 digest, took the initial Section of the hexadecimal to convert it to binary, extra a few zeros into the 8 digits of your binary and obtained 00000010011 which interprets to 19 in https://bookmarkrange.com/story20341325/not-known-factual-statements-about-bip39-explained