I took the index from the words, converted the range to binary, extra 3 zeros, calculated the sha256 digest, took the 1st Element of the hexadecimal to transform it to binary, additional 3 zeros towards the eight digits in the binary and bought 00000010011 which translates to 19 in decimal. https://bookmarkspy.com/story20201846/a-review-of-bip39-phrase-list