I took the index from the words, converted the quantity to binary, additional 3 zeros, calculated the sha256 digest, took the 1st part of the hexadecimal to convert it to binary, additional a few zeros into the eight digits of your binary and bought 00000010011 which interprets to 19 in https://letsbookmarkit.com/story18765622/fascination-about-bip39-english-words