I took the index of the words, transformed the variety to binary, included a few zeros, calculated the sha256 digest, took the main part of the hexadecimal to transform it to binary, additional 3 zeros on the 8 digits in the binary and received 00000010011 which translates to 19 in https://social-galaxy.com/story4251841/examine-this-report-on-bip39-mnemonic-phrase-tool