I took the index on the words, converted the range to binary, added a few zeros, calculated the sha256 digest, took the initial Component of the hexadecimal to convert it to binary, extra three zeros towards the eight digits on the binary and bought 00000010011 which translates to 19 in https://bouchesocial.com/story21729981/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-seed-phrase-mnemonics-generator