refels erfels rfeels freels efrels ferels reefls erefls reefls erefls eerfls eerfls rfeels freels refels erfels ferels efrels eferls feerls eefrls eefrls feerls eferls refles erfles rfeles freles efrles ferles relfes erlfes rlefes lrefes elrfes lerfes rflees frlees rlfees lrfees flrees lfrees eflres felres elfres lefres fleres lferes reelfs erelfs reelfs erelfs eerlfs eerlfs relefs erlefs rleefs lreefs elrefs lerefs relefs erlefs rleefs lreefs elrefs lerefs eelrfs eelrfs elerfs leerfs elerfs leerfs rfeles freles refles erfles ferles efrles rflees frlees rlfees lrfees flrees lfrees relfes erlfes rlefes lrefes elrfes lerfes felres eflres fleres lferes elfres lefres efelrs feelrs eeflrs eeflrs feelrs efelrs eflers felers elfers lefers fleers lfeers eelfrs eelfrs elefrs leefrs elefrs leefrs felers eflers fleers lfeers elfers lefers refesl erfesl rfeesl freesl efresl feresl reefsl erefsl reefsl erefsl eerfsl eerfsl rfeesl freesl refesl erfesl feresl efresl efersl feersl eefrsl eefrsl feersl efersl refsel erfsel rfesel fresel efrsel fersel resfel ersfel rsefel srefel esrfel serfel rfseel frseel rsfeel srfeel fsreel sfreel efsrel fesrel esfrel sefrel fserel sferel reesfl eresfl reesfl eresfl eersfl eersfl resefl ersefl rseefl sreefl esrefl serefl resefl ersefl rseefl sreefl esrefl serefl eesrfl eesrfl eserfl seerfl eserfl seerfl rfesel fresel refsel erfsel fersel efrsel rfseel frseel rsfeel srfeel fsreel sfreel resfel ersfel rsefel srefel esrfel serfel fesrel efsrel fserel sferel esfrel sefrel efesrl feesrl eefsrl eefsrl feesrl efesrl efserl feserl esferl seferl fseerl sfeerl eesfrl eesfrl esefrl seefrl esefrl seefrl feserl efserl fseerl sfeerl esferl seferl reflse erflse rfelse frelse efrlse ferlse relfse erlfse rlefse lrefse elrfse lerfse rflese frlese rlfese lrfese flrese lfrese eflrse felrse elfrse lefrse flerse lferse refsle erfsle rfesle fresle efrsle fersle resfle ersfle rsefle srefle esrfle serfle rfsele frsele rsfele srfele fsrele sfrele efsrle fesrle esfrle sefrle fserle sferle relsfe erlsfe rlesfe lresfe elrsfe lersfe reslfe erslfe rselfe srelfe esrlfe serlfe rlsefe lrsefe rslefe srlefe lsrefe slrefe elsrfe lesrfe eslrfe selrfe lserfe slerfe rflsee frlsee rlfsee lrfsee flrsee lfrsee rfslee frslee rsflee srflee fsrlee sfrlee rlsfee lrsfee rslfee srlfee lsrfee slrfee flsree lfsree fslree sflree lsfree slfree eflsre felsre elfsre lefsre flesre lfesre efslre feslre esflre seflre fselre sfelre elsfre lesfre eslfre selfre lsefre slefre flsere lfsere fslere sflere lsfere slfere reelsf erelsf reelsf erelsf eerlsf eerlsf relesf erlesf rleesf lreesf elresf leresf relesf erlesf rleesf lreesf elresf leresf eelrsf eelrsf elersf leersf elersf leersf reeslf ereslf reeslf ereslf eerslf eerslf reself erself rseelf sreelf esrelf serelf reself erself rseelf sreelf esrelf serelf eesrlf eesrlf eserlf seerlf eserlf seerlf relsef erlsef rlesef lresef elrsef lersef reslef erslef rselef srelef esrlef serlef rlseef lrseef rsleef srleef lsreef slreef elsref lesref eslref selref lseref sleref relsef erlsef rlesef lresef elrsef lersef reslef erslef rselef srelef esrlef serlef rlseef lrseef rsleef srleef lsreef slreef elsref lesref eslref selref lseref sleref eelsrf eelsrf elesrf leesrf elesrf leesrf eeslrf eeslrf eselrf seelrf eselrf seelrf elserf leserf eslerf selerf lseerf sleerf elserf leserf eslerf selerf lseerf sleerf rfelse frelse reflse erflse ferlse efrlse rflese frlese rlfese lrfese flrese lfrese relfse erlfse rlefse lrefse elrfse lerfse felrse eflrse flerse lferse elfrse lefrse rfesle fresle refsle erfsle fersle efrsle rfsele frsele rsfele srfele fsrele sfrele resfle ersfle rsefle srefle esrfle serfle fesrle efsrle fserle sferle esfrle sefrle rflsee frlsee rlfsee lrfsee flrsee lfrsee rfslee frslee rsflee srflee fsrlee sfrlee rlsfee lrsfee rslfee srlfee lsrfee slrfee flsree lfsree fslree sflree lsfree slfree relsfe erlsfe rlesfe lresfe elrsfe lersfe reslfe erslfe rselfe srelfe esrlfe serlfe rlsefe lrsefe rslefe srlefe lsrefe slrefe elsrfe lesrfe eslrfe selrfe lserfe slerfe felsre eflsre flesre lfesre elfsre lefsre feslre efslre fselre sfelre esflre seflre flsere lfsere fslere sflere lsfere slfere elsfre lesfre eslfre selfre lsefre slefre efelsr feelsr eeflsr eeflsr feelsr efelsr eflesr felesr elfesr lefesr fleesr lfeesr eelfsr eelfsr elefsr leefsr elefsr leefsr felesr eflesr fleesr lfeesr elfesr lefesr efeslr feeslr eefslr eefslr feeslr efeslr efselr feselr esfelr sefelr fseelr sfeelr eesflr eesflr eseflr seeflr eseflr seeflr feselr efselr fseelr sfeelr esfelr sefelr eflser felser elfser lefser fleser lfeser efsler fesler esfler sefler fseler sfeler elsfer lesfer eslfer selfer lsefer slefer flseer lfseer fsleer sfleer lsfeer slfeer eelsfr eelsfr elesfr leesfr elesfr leesfr eeslfr eeslfr eselfr seelfr eselfr seelfr elsefr lesefr eslefr selefr lseefr sleefr elsefr lesefr eslefr selefr lseefr sleefr felser eflser fleser lfeser elfser lefser fesler efsler fseler sfeler esfler sefler flseer lfseer fsleer sfleer lsfeer slfeer elsfer lesfer eslfer selfer lsefer slefer
Note: these 'words' (valid or invalid) are all the permutations of the word refels. These words are obtained by scrambling the letters in refels.