I took the index from the words, converted the number to binary, additional three zeros, calculated the sha256 digest, took the initial Component of the hexadecimal to transform it to binary, included a few zeros towards the 8 digits in the binary and obtained 00000010011 which translates to 19 in https://express-page.com/story4162698/little-known-facts-about-bip39-seed-phrase-list