I took the index on the words, converted the quantity to binary, added 3 zeros, calculated the sha256 digest, took the main A part of the hexadecimal to transform it to binary, included 3 zeros into the eight digits of your binary and got 00000010011 which interprets to 19 in https://bookmarkspiral.com/story18982439/new-step-by-step-map-for-bip39-english-words