I took the index of the words, converted the selection to binary, added 3 zeros, calculated the sha256 digest, took the main Portion of the hexadecimal to transform it to binary, added a few zeros to the 8 digits of your binary and obtained 00000010011 which translates to 19 in https://privatebin.net/?57c491b9cad17a10#2jP1wyi3VUgs8q9BTwvowdFnmCxc6BsRV7dxomBiXrt6