I took the index from the words, converted the quantity to binary, added 3 zeros, calculated the sha256 digest, took the main Element of the hexadecimal to convert it to binary, extra a few zeros on the eight digits in the binary and received 00000010011 which interprets to 19 in https://zenwriting.net/keenanctdp/h1-b-unlocking-the-power-of-bip39-a-comprehensive-look-at-word-lists-and