I took the index of the words, transformed the quantity to binary, additional a few zeros, calculated the sha256 digest, took the first Section of the hexadecimal to transform it to binary, added 3 zeros to the 8 digits with the binary and bought 00000010011 which translates to 19 in https://bookmarkdistrict.com/story18564952/not-known-facts-about-bip39-english-words