lifyt ilfyt lfiyt fliyt iflyt filyt liyft ilyft lyift ylift iylft yilft lfyit flyit lyfit ylfit fylit yflit ifylt fiylt iyflt yiflt fyilt yfilt lifty ilfty lfity flity iflty filty litfy iltfy ltify tlify itlfy tilfy lftiy fltiy ltfiy tlfiy ftliy tfliy iftly fitly itfly tifly ftily tfily liytf ilytf lyitf ylitf iyltf yiltf lityf iltyf ltiyf tliyf itlyf tilyf lytif yltif ltyif tlyif ytlif tylif iytlf yitlf itylf tiylf ytilf tyilf lfyti flyti lyfti ylfti fylti yflti lftyi fltyi ltfyi tlfyi ftlyi tflyi lytfi yltfi ltyfi tlyfi ytlfi tylfi fytli yftli ftyli tfyli ytfli tyfli ifytl fiytl iyftl yiftl fyitl yfitl iftyl fityl itfyl tifyl ftiyl tfiyl iytfl yitfl ityfl tiyfl ytifl tyifl fytil yftil ftyil tfyil ytfil tyfil
Note: these 'words' (valid or invalid) are all the permutations of the word lifyt. These words are obtained by scrambling the letters in lifyt.