I took the index in the words, transformed the selection to binary, added three zeros, calculated the sha256 digest, took the 1st Section of the hexadecimal to convert it to binary, added 3 zeros to your 8 digits of the binary and acquired 00000010011 which interprets to 19 in decimal. https://hylistings.com/story20088105/the-2-minute-rule-for-bip39-all-words