I took the index in the words, transformed the selection to binary, extra 3 zeros, calculated the sha256 digest, took the main Element of the hexadecimal to transform it to binary, extra 3 zeros on the 8 digits in the binary and bought 00000010011 which translates to 19 in decimal. https://cyberbookmarking.com/story18954859/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-definition