I took the index of your words, transformed the selection to binary, additional 3 zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to transform it to binary, added a few zeros towards the eight digits on the binary and got 00000010011 which interprets to 19 https://dailybookmarkhit.com/story18907157/new-step-by-step-map-for-bip39-english-words