Bip39 docs https://pixabay.com/users/51089543/ It can be essential which the mnemonic sentences are generated from randomly picked quantities! These quantities can be produced in a number of different ways, which are explained in other articles here, like "What's an RNG" and Seed Phrase Generation. Due to the cryptographic style of BIP-39, https://socialbuzzfeed.com/story6329778/bip39-online-generator-new-step-by-step-map-for-bip39-github-https-cutt-ly-uryc5rw7