roven orven rvoen vroen ovren voren roevn orevn reovn erovn oervn eorvn rveon vreon revon ervon veron evron overn voern oevrn eovrn veorn evorn rovne orvne rvone vrone ovrne vorne ronve ornve rnove nrove onrve norve rvnoe vrnoe rnvoe nrvoe vnroe nvroe ovnre vonre onvre novre vnore nvore roenv orenv reonv eronv oernv eornv ronev ornev rnoev nroev onrev norev renov ernov rneov nreov enrov nerov oenrv eonrv onerv noerv enorv neorv rveno vreno revno ervno verno evrno rvneo vrneo rnveo nrveo vnreo nvreo renvo ernvo rnevo nrevo enrvo nervo venro evnro vnero nvero envro nevro ovenr voenr oevnr eovnr veonr evonr ovner voner onver nover vnoer nvoer oenvr eonvr onevr noevr enovr neovr venor evnor vneor nveor envor nevor
Note: these 'words' (valid or invalid) are all the permutations of the word roven. These words are obtained by scrambling the letters in roven.