troat rtoat torat otrat rotat ortat traot rtaot tarot atrot ratot artot toart otart taort atort oatrt aotrt roatt oratt raott arott oartt aortt trota rtota torta otrta rotta ortta trtoa rttoa ttroa ttroa rttoa trtoa totra ottra ttora ttora ottra totra rotta ortta rtota trota otrta torta trato rtato tarto atrto ratto artto trtao rttao ttrao ttrao rttao trtao tatro attro ttaro ttaro attro tatro ratto artto rtato trato atrto tarto toatr otatr taotr atotr oattr aottr totar ottar ttoar ttoar ottar totar tator attor ttaor ttaor attor tator oattr aottr otatr toatr atotr taotr roatt oratt raott arott oartt aortt rotat ortat rtoat troat otrat torat ratot artot rtaot traot atrot tarot oatrt aotrt otart toart atort taort
Note: these 'words' (valid or invalid) are all the permutations of the word troat. These words are obtained by scrambling the letters in troat.