I took the index of the words, transformed the selection to binary, additional 3 zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to transform it to binary, added 3 zeros on the eight digits of the binary and bought 00000010011 which translates to 19 in https://wiishlist.com/story19463172/considerations-to-know-about-bip39-word-list-pdf