I took the index of the words, converted the selection to binary, additional three zeros, calculated the sha256 digest, took the 1st part of the hexadecimal to transform it to binary, additional 3 zeros to the 8 digits in the binary and got 00000010011 which translates to 19 in decimal. https://dailybookmarkhit.com/story19093129/how-much-you-need-to-expect-you-ll-pay-for-a-good-valid-bip39-seed-phrase