I took the index in the words, transformed the number to binary, added a few zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to transform it to binary, included a few zeros into the eight digits of the binary and got 00000010011 which interprets to https://bookmarkextent.com/story20637658/the-fact-about-valid-bip39-seed-phrase-that-no-one-is-suggesting