Valid bip39 seed phrase https://www.anobii.com/en/01000289012ff9b293/profile/activity BIP85: A newer proposal permitting the deterministic derivation of a number of BIP39 mnemonic seeds from a master seed. For words that only have three letters, there isn't a 4th letter. Such as with the word “insert”, there are no much more letters Later on https://pr1bookmarks.com/story20864043/bip39-cryptotag-5-essential-elements-for-bip39-word-list-pdf-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw