fyked yfked fkyed kfyed ykfed kyfed fyekd yfekd feykd efykd yefkd eyfkd fkeyd kfeyd fekyd efkyd kefyd ekfyd ykefd kyefd yekfd eykfd keyfd ekyfd fykde yfkde fkyde kfyde ykfde kyfde fydke yfdke fdyke dfyke ydfke dyfke fkdye kfdye fdkye dfkye kdfye dkfye ykdfe kydfe ydkfe dykfe kdyfe dkyfe fyedk yfedk feydk efydk yefdk eyfdk fydek yfdek fdyek dfyek ydfek dyfek fedyk efdyk fdeyk dfeyk edfyk defyk yedfk eydfk ydefk dyefk edyfk deyfk fkedy kfedy fekdy efkdy kefdy ekfdy fkdey kfdey fdkey dfkey kdfey dkfey fedky efdky fdeky dfeky edfky defky kedfy ekdfy kdefy dkefy edkfy dekfy ykedf kyedf yekdf eykdf keydf ekydf ykdef kydef ydkef dykef kdyef dkyef yedkf eydkf ydekf dyekf edykf deykf kedyf ekdyf kdeyf dkeyf edkyf dekyf
Note: these 'words' (valid or invalid) are all the permutations of the word fyked. These words are obtained by scrambling the letters in fyked.