tweel wteel tewel etwel wetel ewtel tweel wteel tewel etwel wetel ewtel teewl etewl teewl etewl eetwl eetwl weetl ewetl weetl ewetl eewtl eewtl twele wtele tewle etwle wetle ewtle twlee wtlee tlwee ltwee wltee lwtee telwe etlwe tlewe ltewe eltwe letwe welte ewlte wlete lwete elwte lewte twele wtele tewle etwle wetle ewtle twlee wtlee tlwee ltwee wltee lwtee telwe etlwe tlewe ltewe eltwe letwe welte ewlte wlete lwete elwte lewte teelw etelw teelw etelw eetlw eetlw telew etlew tleew lteew eltew letew telew etlew tleew lteew eltew letew eeltw eeltw eletw leetw eletw leetw weelt ewelt weelt ewelt eewlt eewlt welet ewlet wleet lweet elwet lewet welet ewlet wleet lweet elwet lewet eelwt eelwt elewt leewt elewt leewt
Note: these 'words' (valid or invalid) are all the permutations of the word tweel. These words are obtained by scrambling the letters in tweel.