felon eflon fleon lfeon elfon lefon feoln efoln foeln ofeln eofln oefln floen lfoen folen oflen lofen olfen elofn leofn eolfn oelfn loefn olefn felno eflno fleno lfeno elfno lefno fenlo efnlo fnelo nfelo enflo neflo flneo lfneo fnleo nfleo lnfeo nlfeo elnfo lenfo enlfo nelfo lnefo nlefo feonl efonl foenl ofenl eofnl oefnl fenol efnol fneol nfeol enfol nefol fonel ofnel fnoel nfoel onfel nofel eonfl oenfl enofl neofl onefl noefl flone lfone folne oflne lofne olfne flnoe lfnoe fnloe nfloe lnfoe nlfoe fonle ofnle fnole nfole onfle nofle lonfe olnfe lnofe nlofe onlfe nolfe elonf leonf eolnf oelnf loenf olenf elnof lenof enlof nelof lneof nleof eonlf oenlf enolf neolf onelf noelf lonef olnef lnoef nloef onlef nolef
Note: these 'words' (valid or invalid) are all the permutations of the word felon. These words are obtained by scrambling the letters in felon.