I took the index of your words, transformed the selection to binary, extra three zeros, calculated the sha256 digest, took the first part of the hexadecimal to transform it to binary, extra 3 zeros to the eight digits in the binary and got 00000010011 which translates to 19 in decimal. https://socialrator.com/story9438723/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-definition