I took the index of your words, transformed the selection to binary, added 3 zeros, calculated the sha256 digest, took the initial part of the hexadecimal to convert it to binary, added three zeros to the 8 digits with the binary and bought 00000010011 which translates to 19 in decimal. https://ticketsbookmarks.com/story18747840/not-known-facts-about-bip39-english-words