I took the index from the words, converted the quantity to binary, added three zeros, calculated the sha256 digest, took the primary Component of the hexadecimal to transform it to binary, extra a few zeros towards the 8 digits from the binary and got 00000010011 which translates to 19 in https://userbookmark.com/story18832038/new-step-by-step-map-for-bip39-english-words