I took the index from the words, converted the selection to binary, added three zeros, calculated the sha256 digest, took the very first Section of the hexadecimal to transform it to binary, added a few zeros into the 8 digits on the binary and received 00000010011 which translates to 19 https://yoursocialpeople.com/story4160069/considerations-to-know-about-bip39-word-list-pdf