I took the index from the words, converted the amount to binary, extra three zeros, calculated the sha256 digest, took the main A part of the hexadecimal to transform it to binary, extra a few zeros on the 8 digits in the binary and bought 00000010011 which interprets to 19 https://telegra.ph/Unlocking-the-World-of-BIP39-A-Comprehensive-Guide-to-Mnemonic-Expressions-and-Word-Listings-01-17