Generating A K Expression A BIP39 mnemonic sentence is usually a list of words (mostly 12 or 24) that we are able to interact with far more properly than other characters that aren't words (bits and numbers as well as like). BIP39's intent in introducing the use of mnemonic words https://socialaffluent.com/story4082069/bip39-passphrase-list-5-easy-facts-about-seed-phrase-generator-described