tweep wteep tewep etwep wetep ewtep tweep wteep tewep etwep wetep ewtep teewp etewp teewp etewp eetwp eetwp weetp ewetp weetp ewetp eewtp eewtp twepe wtepe tewpe etwpe wetpe ewtpe twpee wtpee tpwee ptwee wptee pwtee tepwe etpwe tpewe ptewe eptwe petwe wepte ewpte wpete pwete epwte pewte twepe wtepe tewpe etwpe wetpe ewtpe twpee wtpee tpwee ptwee wptee pwtee tepwe etpwe tpewe ptewe eptwe petwe wepte ewpte wpete pwete epwte pewte teepw etepw teepw etepw eetpw eetpw tepew etpew tpeew pteew eptew petew tepew etpew tpeew pteew eptew petew eeptw eeptw epetw peetw epetw peetw weept ewept weept ewept eewpt eewpt wepet ewpet wpeet pweet epwet pewet wepet ewpet wpeet pweet epwet pewet eepwt eepwt epewt peewt epewt peewt
Note: these 'words' (valid or invalid) are all the permutations of the word tweep. These words are obtained by scrambling the letters in tweep.