I took the index of the words, transformed the variety to binary, extra 3 zeros, calculated the sha256 digest, took the main part of the hexadecimal to convert it to binary, additional a few zeros towards the 8 digits on the binary and acquired 00000010011 which interprets to 19 in https://bookmarkity.com/story19104680/new-step-by-step-map-for-bip39-english-words