I took the index on the words, converted the variety to binary, added three zeros, calculated the sha256 digest, took the primary Element of the hexadecimal to transform it to binary, added three zeros to the eight digits from the binary and received 00000010011 which translates to 19 in decimal. https://bookmarkboom.com/story18808534/the-2-minute-rule-for-bip39-all-words