I took the index of the words, transformed the number to binary, extra 3 zeros, calculated the sha256 digest, took the 1st Section of the hexadecimal to transform it to binary, added a few zeros towards the 8 digits of your binary and bought 00000010011 which interprets to 19 in https://sparxsocial.com/story9101948/fascination-about-invalid-bip39-phrase