filles iflles fliles lfiles ilfles lifles filles iflles fliles lfiles ilfles lifles fllies lflies fllies lflies llfies llfies illfes lilfes illfes lilfes llifes llifes filels iflels fliels lfiels ilfels lifels fiells ifells feills efills ieflls eiflls fleils lfeils felils eflils lefils elfils ilefls liefls ielfls eilfls leifls elifls filels iflels fliels lfiels ilfels lifels fiells ifells feills efills ieflls eiflls fleils lfeils felils eflils lefils elfils ilefls liefls ielfls eilfls leifls elifls flleis lfleis flleis lfleis llfeis llfeis flelis lfelis fellis efllis leflis elflis flelis lfelis fellis efllis leflis elflis llefis llefis lelfis ellfis lelfis ellfis illefs lilefs illefs lilefs lliefs lliefs ilelfs lielfs iellfs eillfs leilfs elilfs ilelfs lielfs iellfs eillfs leilfs elilfs lleifs lleifs lelifs ellifs lelifs ellifs fillse ifllse flilse lfilse ilflse liflse fillse ifllse flilse lfilse ilflse liflse fllise lflise fllise lflise llfise llfise illfse lilfse illfse lilfse llifse llifse filsle iflsle flisle lfisle ilfsle lifsle fislle ifslle fsille sfille isflle siflle flsile lfsile fslile sflile lsfile slfile ilsfle lisfle islfle silfle lsifle slifle filsle iflsle flisle lfisle ilfsle lifsle fislle ifslle fsille sfille isflle siflle flsile lfsile fslile sflile lsfile slfile ilsfle lisfle islfle silfle lsifle slifle fllsie lflsie fllsie lflsie llfsie llfsie flslie lfslie fsllie sfllie lsflie slflie flslie lfslie fsllie sfllie lsflie slflie llsfie llsfie lslfie sllfie lslfie sllfie illsfe lilsfe illsfe lilsfe llisfe llisfe ilslfe lislfe isllfe sillfe lsilfe slilfe ilslfe lislfe isllfe sillfe lsilfe slilfe llsife llsife lslife sllife lslife sllife filesl iflesl fliesl lfiesl ilfesl lifesl fielsl ifelsl feilsl efilsl ieflsl eiflsl fleisl lfeisl felisl eflisl lefisl elfisl ilefsl liefsl ielfsl eilfsl leifsl elifsl filsel iflsel flisel lfisel ilfsel lifsel fislel ifslel fsilel sfilel isflel siflel flsiel lfsiel fsliel sfliel lsfiel slfiel ilsfel lisfel islfel silfel lsifel slifel fiesll ifesll feisll efisll iefsll eifsll fisell ifsell fsiell sfiell isfell sifell fesill efsill fseill sfeill esfill sefill iesfll eisfll isefll siefll esifll seifll flesil lfesil felsil eflsil lefsil elfsil flseil lfseil fsleil sfleil lsfeil slfeil feslil efslil fselil sfelil esflil seflil lesfil elsfil lsefil slefil eslfil selfil ilesfl liesfl ielsfl eilsfl leisfl elisfl ilsefl lisefl islefl silefl lsiefl sliefl ieslfl eislfl iselfl sielfl esilfl seilfl lesifl elsifl lseifl sleifl eslifl selifl filesl iflesl fliesl lfiesl ilfesl lifesl fielsl ifelsl feilsl efilsl ieflsl eiflsl fleisl lfeisl felisl eflisl lefisl elfisl ilefsl liefsl ielfsl eilfsl leifsl elifsl filsel iflsel flisel lfisel ilfsel lifsel fislel ifslel fsilel sfilel isflel siflel flsiel lfsiel fsliel sfliel lsfiel slfiel ilsfel lisfel islfel silfel lsifel slifel fiesll ifesll feisll efisll iefsll eifsll fisell ifsell fsiell sfiell isfell sifell fesill efsill fseill sfeill esfill sefill iesfll eisfll isefll siefll esifll seifll flesil lfesil felsil eflsil lefsil elfsil flseil lfseil fsleil sfleil lsfeil slfeil feslil efslil fselil sfelil esflil seflil lesfil elsfil lsefil slefil eslfil selfil ilesfl liesfl ielsfl eilsfl leisfl elisfl ilsefl lisefl islefl silefl lsiefl sliefl ieslfl eislfl iselfl sielfl esilfl seilfl lesifl elsifl lseifl sleifl eslifl selifl fllesi lflesi fllesi lflesi llfesi llfesi flelsi lfelsi fellsi efllsi leflsi elflsi flelsi lfelsi fellsi efllsi leflsi elflsi llefsi llefsi lelfsi ellfsi lelfsi ellfsi fllsei lflsei fllsei lflsei llfsei llfsei flslei lfslei fsllei sfllei lsflei slflei flslei lfslei fsllei sfllei lsflei slflei llsfei llsfei lslfei sllfei lslfei sllfei flesli lfesli felsli eflsli lefsli elfsli flseli lfseli fsleli sfleli lsfeli slfeli feslli efslli fselli sfelli esflli seflli lesfli elsfli lsefli slefli eslfli selfli flesli lfesli felsli eflsli lefsli elfsli flseli lfseli fsleli sfleli lsfeli slfeli feslli efslli fselli sfelli esflli seflli lesfli elsfli lsefli slefli eslfli selfli llesfi llesfi lelsfi ellsfi lelsfi ellsfi llsefi llsefi lslefi sllefi lslefi sllefi leslfi elslfi lselfi slelfi esllfi sellfi leslfi elslfi lselfi slelfi esllfi sellfi illesf lilesf illesf lilesf lliesf lliesf ilelsf lielsf iellsf eillsf leilsf elilsf ilelsf lielsf iellsf eillsf leilsf elilsf lleisf lleisf lelisf ellisf lelisf ellisf illsef lilsef illsef lilsef llisef llisef ilslef lislef isllef sillef lsilef slilef ilslef lislef isllef sillef lsilef slilef llsief llsief lslief sllief lslief sllief ileslf lieslf ielslf eilslf leislf elislf ilself liself islelf silelf lsielf slielf iesllf eisllf isellf siellf esillf seillf lesilf elsilf lseilf sleilf eslilf selilf ileslf lieslf ielslf eilslf leislf elislf ilself liself islelf silelf lsielf slielf iesllf eisllf isellf siellf esillf seillf lesilf elsilf lseilf sleilf eslilf selilf llesif llesif lelsif ellsif lelsif ellsif llseif llseif lsleif slleif lsleif slleif leslif elslif lselif slelif esllif sellif leslif elslif lselif slelif esllif sellif
Note: these 'words' (valid or invalid) are all the permutations of the word filles. These words are obtained by scrambling the letters in filles.