dotty odtty dtoty tdoty otdty todty dotty odtty dtoty tdoty otdty todty dttoy tdtoy dttoy tdtoy ttdoy ttdoy ottdy totdy ottdy totdy ttody ttody dotyt odtyt dtoyt tdoyt otdyt todyt doytt odytt dyott ydott oydtt yodtt dtyot tdyot dytot ydtot tydot ytdot otydt toydt oytdt yotdt tyodt ytodt dotyt odtyt dtoyt tdoyt otdyt todyt doytt odytt dyott ydott oydtt yodtt dtyot tdyot dytot ydtot tydot ytdot otydt toydt oytdt yotdt tyodt ytodt dttyo tdtyo dttyo tdtyo ttdyo ttdyo dtyto tdyto dytto ydtto tydto ytdto dtyto tdyto dytto ydtto tydto ytdto ttydo ttydo tytdo yttdo tytdo yttdo ottyd totyd ottyd totyd ttoyd ttoyd otytd toytd oyttd yottd tyotd ytotd otytd toytd oyttd yottd tyotd ytotd ttyod ttyod tytod yttod tytod yttod
Note: these 'words' (valid or invalid) are all the permutations of the word dotty. These words are obtained by scrambling the letters in dotty.