I took the index on the words, transformed the variety to binary, added three zeros, calculated the sha256 digest, took the primary part of the hexadecimal to transform it to binary, extra a few zeros towards the eight digits on the binary and bought 00000010011 which interprets to 19 in https://bookmarkforest.com/story18959306/5-simple-techniques-for-bip39-word-list-pdf