I took the index in the words, transformed the variety to binary, included 3 zeros, calculated the sha256 digest, took the 1st A part of the hexadecimal to transform it to binary, additional a few zeros to the 8 digits of the binary and acquired 00000010011 which interprets to 19 https://canvas.instructure.com/eportfolios/3396498/ricardooxtv236/opening-the-world-of-bip39-a-comprehensive-overview-to-mnemonic-expressions-and-word-checklists