dddd dfrf dfri didi dido didu dif- diff diii dilf dili dill dilo diol dior diou dird dirl dirr dlii dlil dod- dodd dodi dodo doff doid doil dold dolf doli doll dolo dolu dood doof dool door dord dorf dori doro dorr doru doud douf doul dour drif dril drod drof drol drou drui druu dudd dudo dudu duff dufu duid duif duil duir duli dull dulo dulu duo- duri duro duru duul duur fdlr ffff ffii ffrr fidf fido fiff fifi fifo fiii fiil fild fili fill filo fior fldr flid flii flod floo flor flou flud fluf fluo flur fofo foid foil fold foli foll folo folr food foof fool for- ford fori forl foro forr foud foul four frid fril frio frol frou fudd fudi fuff fufu fuid fuil fuir fuli full fulu fuor fur- furi furl furo furr iddo idid idil idio idir idli idol idrf idro iduo ifid ifil ifor ifrf ifri iiii iiio iioi iioo ilio ilir ill- illd illi illo iloo ilud iod- iodd iodo ioii ioio iolo ioof iooi iooo iori irdo irfu iri- irid iril irio irod irri irul iuiu ldif lfrd lidl lido liff lifl lifo liii liir lili lill lilo lilu lio- liod lior lird liri lirl liro lirr liru liuf llll llod lloo llud lodi loff lofi loid loif loir loiu lold loli loll lolo lood loof lool loor lord lori loro loud loui loul lour louu lrdd lrif lroi lrrr ludd ludi ludo luff lufu luif luli lull lulu lurd luri oddd oddi odio odir odiu odoo odor odou odrl odur ofdr off- offo offr offu ofid ofor oido oiii olid olio olli ollo olof olor olur oodi ooff ooid oold oolo oooo oord ordo ordu orff orfi orfu ori- orid orif oril orio orlo orlu oro- orof oror orri orro ouff ouii ouir ould oulu our- ouro ouu- rdio rfdi rffl rfid ridd ridi rido riff rifu riif rill rilo rilu riol riou riri rlif rodd rodi rodo roff rofl rofo roid roif roil roio roir roiu rold rolf roll rolo rood roof rooi rool roor rori roro roru roud rouf roul rrif rrrr rudd rudi rudl rudo ruff rufo ruid ruif rull rulo rurd ruri ruro ruru ruud uddi udid udir udoo uirr ulli ullo ullr ulo- ulul uofl uofo uor- urdu urff urfi urif uriu uro- urol uroo urri urur uulu uuri uuuu