I took the index of your words, transformed the number to binary, additional three zeros, calculated the sha256 digest, took the primary Section of the hexadecimal to transform it to binary, additional 3 zeros to the 8 digits of the binary and got 00000010011 which translates to 19 in decimal. https://other-space.uncrn.co/blog/bip39-word-list-explained-your-necessary-resource-for-creating-secure-wallets-in-the-copyright-room/