I took the index in the words, transformed the number to binary, additional a few zeros, calculated the sha256 digest, took the main Component of the hexadecimal to convert it to binary, added 3 zeros into the 8 digits from the binary and bought 00000010011 which interprets to 19 in https://bookmark-share.com/story19523352/a-secret-weapon-for-bip39-words-to-numbers