wheta hweta wehta ewhta hewta ehwta whtea hwtea wthea twhea htwea thwea wetha ewtha wteha tweha etwha tewha hetwa ehtwa htewa thewa ethwa tehwa wheat hweat wehat ewhat hewat ehwat whaet hwaet wahet awhet hawet ahwet weaht ewaht waeht aweht eawht aewht heawt ehawt haewt ahewt eahwt aehwt whtae hwtae wthae twhae htwae thwae whate hwate wahte awhte hawte ahwte wtahe twahe wathe awthe tawhe atwhe htawe thawe hatwe ahtwe tahwe athwe wetah ewtah wteah tweah etwah tewah weath ewath waeth aweth eawth aewth wtaeh twaeh wateh awteh taweh atweh etawh teawh eatwh aetwh taewh atewh hetaw ehtaw hteaw theaw ethaw tehaw heatw ehatw haetw ahetw eahtw aehtw htaew thaew hatew ahtew tahew athew etahw teahw eathw aethw taehw atehw
Note: these 'words' (valid or invalid) are all the permutations of the word wheta. These words are obtained by scrambling the letters in wheta.