I took the index from the words, transformed the amount 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 into the eight digits from the binary and received 00000010011 which translates to 19 in https://crossbookmark.com/story18848029/top-latest-five-bip39-words-urban-news