I took the index of the words, converted the variety to binary, included three zeros, calculated the sha256 digest, took the first Portion of the hexadecimal to transform it to binary, added 3 zeros towards the eight digits of the binary and bought 00000010011 which interprets to 19 in decimal. https://worldsocialindex.com/story4128974/the-2-minute-rule-for-bip39-all-words