I took the index on the words, converted the number to binary, included 3 zeros, calculated the sha256 digest, took the first Portion of the hexadecimal to convert it to binary, added a few zeros towards the eight digits in the binary and bought 00000010011 which interprets to 19 in https://echobookmarks.com/story18786856/bip39-seed-phrase-mnemonics-generator-an-overview