I took the index on the words, converted the number to binary, added 3 zeros, calculated the sha256 digest, took the first Component of the hexadecimal to convert it to binary, extra a few zeros for the 8 digits with the binary and received 00000010011 which interprets to 19 in https://bookmarkdistrict.com/story19222445/new-step-by-step-map-for-bip39-english-words