I took the index from the words, transformed the number to binary, included 3 zeros, calculated the sha256 digest, took the main Section of the hexadecimal to transform it to binary, added 3 zeros into the eight digits of the binary and got 00000010011 which interprets to 19 in decimal. https://thefairlist.com/story9573121/new-step-by-step-map-for-bip39-english-words