I took the index with the words, converted the quantity to binary, extra 3 zeros, calculated the sha256 digest, took the very first Section of the hexadecimal to transform it to binary, added 3 zeros into the eight digits from the binary and received 00000010011 which translates to 19 in https://advicebookmarks.com/story26416321/not-known-facts-about-bip39-english-words