dddd ddot dfdt dfrf dftr dntt dod- dodd dodo doff dond donn dono donr dont dood doof doon door doot dord dorf dorn doro dorr dort dotd doto dott drno drod drof dron drot dtor dtot fdot ffff ffrr fftf fndd fndn fndr fofo fond fono font food foof foon foot for- ford forn foro forr fort foto fott fron frot nddo ndnt ndor ndrf nfff nfon nfto nnnn nnot nntn nodo non- nonn nono nont noo- noon nooo noor noot nor- nord norf norn noro norr nort not- noto nott nron nrrd ntnd ntof ntto nttr oddd odon odoo odor odot ofdr off- offo offr ofno ofor ondo onno onod onon onor ont- onto ooff oont oooo oord oort ordn ordo orff orno oro- orof oron oror orot orro orto oto- otof oton otoo otor otro otto rndf rnnt rnod rnot rntd rodd rodo roff rofo rond rono ront rood roof roon roor root roro rort rotn roto rotr rott rrrr rtdt rtnd tdff tdor tfot tndd tndf todd todo todt toff tofo toft tonn tono tood toof toon toor toot tord torf torn toro torr tort totd toto totr tott trfd trfr trno trod tron troo trot trtr ttff ttfn tton tttt