I took the index of your words, converted the number to binary, added three zeros, calculated the sha256 digest, took the primary Section of the hexadecimal to transform it to binary, extra a few zeros for the eight digits of the binary and acquired 00000010011 which translates to 19 in https://bookmarkpressure.com/story18918299/considerations-to-know-about-bip39-word-list-pdf