dddd dfrf dfri didi dido dif- diff digg digi digo diii dior dird dirr dod- dodd dodg dodi dodo doff dog- dogg dogi dogo doid doig dood doof door dord dorf dori doro dorr drif drod drof drog ffff ffii ffrr fidf fido fiff fifi fifo figg figo fiii fior fofo fogg fogi fogo foid food foof for- ford forg fori foro forr frid frig frio frog gdfr gdor gfor ggfg gggg gidd gidi gido giff gigg gigi gigo giog gioi gird girg giri giro girr godi godo goff gofr gogi gogo goif good goof goog gooi goor gord gorf gorg gori goro gorr grid grif grig grod grof grog groi groo gror grrr i-go iddo idgf idgo idid idig idio idir idog idrf idro ifid ifor ifrf ifri igoo igor igri iiii iiio iioi iioo iod- iodd iodo ioii ioio ioof iooi iooo iorg iori irdo iri- irid irig irio irod irri oddd oddi odio odir odoo odor ofdr off- offo offr ofgo ofid ofor ogfr oggi ogod ogog ogoi ogri ogro oido oigo oiii oodi ooff ooid oooo oord ordo orff orfi orgo ori- orid orif orig orio oro- orof oror orri orro rdio rfdi rfid ridd ridi rido riff rigg rigi rigo riif riri rodd rodi rodo roff rofo rogg rogi rogo roid roif roig roio roir rood roof roog rooi roor rori roro rrif rrrr