mutts umtts mtuts tmuts utmts tumts mutts umtts mtuts tmuts utmts tumts mttus tmtus mttus tmtus ttmus ttmus uttms tutms uttms tutms ttums ttums mutst umtst mtust tmust utmst tumst mustt umstt msutt smutt usmtt sumtt mtsut tmsut mstut smtut tsmut stmut utsmt tusmt ustmt sutmt tsumt stumt mutst umtst mtust tmust utmst tumst mustt umstt msutt smutt usmtt sumtt mtsut tmsut mstut smtut tsmut stmut utsmt tusmt ustmt sutmt tsumt stumt mttsu tmtsu mttsu tmtsu ttmsu ttmsu mtstu tmstu msttu smttu tsmtu stmtu mtstu tmstu msttu smttu tsmtu stmtu ttsmu ttsmu tstmu sttmu tstmu sttmu uttsm tutsm uttsm tutsm ttusm ttusm utstm tustm usttm suttm tsutm stutm utstm tustm usttm suttm tsutm stutm ttsum ttsum tstum sttum tstum sttum
Note: these 'words' (valid or invalid) are all the permutations of the word mutts. These words are obtained by scrambling the letters in mutts.