refry erfry rfery frery efrry ferry rerfy errfy rrefy rrefy errfy rerfy rfrey frrey rrfey rrfey frrey rfrey efrry ferry erfry refry frery rfery refyr erfyr rfeyr freyr efryr feryr reyfr eryfr ryefr yrefr eyrfr yerfr rfyer fryer ryfer yrfer fyrer yfrer efyrr feyrr eyfrr yefrr fyerr yferr reryf erryf rreyf rreyf erryf reryf reyrf eryrf ryerf yrerf eyrrf yerrf rryef rryef ryref yrref ryref yrref eryrf reyrf eyrrf yerrf ryerf yrerf rfrye frrye rrfye rrfye frrye rfrye rfyre fryre ryfre yrfre fyrre yfrre rryfe rryfe ryrfe yrrfe ryrfe yrrfe fryre rfyre fyrre yfrre ryfre yrfre efryr feryr erfyr refyr freyr rfeyr efyrr feyrr eyfrr yefrr fyerr yferr eryfr reyfr eyrfr yerfr ryefr yrefr fryer rfyer fyrer yfrer ryfer yrfer
Note: these 'words' (valid or invalid) are all the permutations of the word refry. These words are obtained by scrambling the letters in refry.