I took the index from the words, transformed the selection to binary, included 3 zeros, calculated the sha256 digest, took the 1st Section of the hexadecimal to transform it to binary, added 3 zeros into the 8 digits from the binary and obtained 00000010011 which interprets to 19 in decimal. https://mysocialport.com/story4256337/examine-this-report-on-bip39-mnemonic-phrase-tool