I took the index of the words, transformed the number to binary, added three zeros, calculated the sha256 digest, took the primary Component of the hexadecimal to transform it to binary, additional 3 zeros towards the 8 digits with the binary and obtained 00000010011 which interprets to 19 in decimal. https://wiishlist.com/story19411457/examine-this-report-on-bip39-mnemonic-phrase-tool