dddd ddot dfdt dfrf dfri dftg dftr didi dido dif- diff digg digi digo diii dior diot dird dirr dirt diti dito ditt dod- dodd dodg dodi dodo doff dog- dogg dogi dogo doid doig doit dood doof door doot dord dorf dori doro dorr dort dotd doti doto dott drif drit drod drof drog drot dtor dtot fdot fdti ffff ffii ffrr fftf fidf fido fiff fifi fifo fift figg figo fiii fior fiti fitt fofo fogg fogi fogo foid food foof foot for- ford forg fori foro forr fort foti foto fott frid frig frio frit frog frot ftdi ftgd ftii gdfr gdor gdrt gfor ggfg gggg gidd gidi gido giff gift gigg gigi gigo giog gioi gird girg giri giro girr girt gito godi godo goff gofr gogi gogo goif goit good goof goog gooi goor goot gord gorf gorg gori goro gorr gort gotd goti goto gott grid grif grig grit grod grof grog groi groo gror grot grrr gtfo i-go iddo idgf idgo idid idig idio idir idog idrf idro ifid ifit ifor ifrf ifri ifto igoo igor igot igri iiii iiio iiit iioi iioo iitr iitt iod- iodd iodo iogt ioii ioio ioit ioof iooi iooo iorg iori iotf ioto irdo iri- irid irig irio irod irri irtf irti itdo itgo itif itof itoi itoo itor itrf itri ittf itto oddd oddi odio odir odoo odor odot ofdr off- offo offr ofgo ofid ofit ofor ogfr oggi ogod ogog ogoi ogri ogro oido oigo oiii oirt oiti oodi ooff ooid oooo oord oort ordo orff orfi orgo ori- orid orif orig orio orit oro- orof oror orot orri orro orto otif otit oto- otof otog otoo otor otro otti otto rdio rfdi rfid rgit rgtr ridd ridi rido riff rift rigg rigi rigo riif riot riri riti rito ritt rodd rodi rodo roff rofo rogg rogi rogo roid roif roig roio roir roit rood roof roog rooi roor root rori roro rort rotg roti roto rotr rott rrif rrrr rtdt tdff tdor tdri tfot tgif tidd tiff tifo tift tigi tigr tiit tird tiri tiro tirr titi tito titt todd todi todo todt toff tofi tofo toft togo togr togt toid toit tood toof toor toot tord torf torg tori toro torr tort totd toti toto totr tott trfd trfr tri- trif trig trio trit trod trog troi troo trot trtr ttff tttt