I took the index in the words, transformed the range to binary, included three zeros, calculated the sha256 digest, took the first part of the hexadecimal to convert it to binary, extra three zeros for the 8 digits from the binary and bought 00000010011 which interprets to 19 in decimal. https://bookmarkpath.com/story18794246/top-latest-five-bip39-seed-phrase-mnemonics-generator-urban-news