dddd ddot dfdt dfrf dftr dmdt dmft dmtf dod- dodd dodo doff domm domo dood doof doom door doot dord dorf dorm doro dorr dort dotd doto dott drod drof drom drot dtor dtot fdom fdot ffff ffrr fftf fmod fofo fomo fomt food foof foom foot for- ford form foro forr fort fotm foto fott from frot mddm mdmf mdot mfor mftf mmdf mmfd mmff mmmd mmmm mmod mmor mmrf modd modo moff mofo momo mood moor moot mord morf moro mort motd motm moto mott mrdd mrmd mrtm mrtt mtff mtom mtor mtrr mttr oddd odmr odom odoo odor odot ofdr off- offo offr ofor omo- omoo omor omro ooff oooo oord oort ordo orff ormo oro- orof orom oror orot orro orto oto- otof otoo otor otro otto rodd rodo roff rofo romd romm romo rood roof room roor root roro rort roto rotr rott rrrr rtdt rtfm t-mo tdff tdor tfot tmro tmtt todd todo todt toff tofo toft tomm tomo tomt tood toof toom toor toot tord torf torm toro torr tort totd totm toto totr tott trfd trfm trfr trmd trod trom troo trot trtr ttff tttt