I took the index on the words, transformed the range to binary, extra 3 zeros, calculated the sha256 digest, took the 1st Element of the hexadecimal to transform it to binary, included a few zeros to your eight digits of your binary and bought 00000010011 which interprets to 19 in https://travialist.com/story9110237/top-latest-five-bip39-seed-phrase-mnemonics-generator-urban-news