whais hwais wahis awhis hawis ahwis whias hwias wihas iwhas hiwas ihwas waihs awihs wiahs iwahs aiwhs iawhs haiws ahiws hiaws ihaws aihws iahws whasi hwasi wahsi awhsi hawsi ahwsi whsai hwsai wshai swhai hswai shwai washi awshi wsahi swahi aswhi sawhi haswi ahswi hsawi shawi ashwi sahwi whisa hwisa wihsa iwhsa hiwsa ihwsa whsia hwsia wshia swhia hswia shwia wisha iwsha wsiha swiha iswha siwha hiswa ihswa hsiwa shiwa ishwa sihwa waish awish wiash iwash aiwsh iawsh wasih awsih wsaih swaih aswih sawih wisah iwsah wsiah swiah iswah siwah aiswh iaswh asiwh saiwh isawh siawh haisw ahisw hiasw ihasw aihsw iahsw hasiw ahsiw hsaiw shaiw ashiw sahiw hisaw ihsaw hsiaw shiaw ishaw sihaw aishw iashw asihw saihw isahw siahw
Note: these 'words' (valid or invalid) are all the permutations of the word whais. These words are obtained by scrambling the letters in whais.