dddd ddot dfdt dfrf dfri dftr didi dido didu dif- diff diii dimi dimm dimo dimu dior diot diou dird dirr dirt diti dito ditt dmdt dmft dmtf dod- dodd dodi dodo doff doid doit domi domm domo dood doof doom door doot dord dorf dori dorm doro dorr dort doru dotd doti doto dott doud douf doum dour dout drif drit drod drof drom drot drou drui drum drut druu dtor dtot dudd dudo dudu duff dufu duid duif duir duit dumi dumm duo- duri duro durt duru duur duut fdom fdot fdti ffff ffii ffrr fftf fidf fido fiff fifi fifm fifo fift fiii fimo fimr fior firm fiti fitt fmod fmri fofo foid fomo fomt food foof foom foot for- ford fori form foro forr fort foti fotm foto fott foud four fout frid frim frio frit from frot frou frum ftdi ftii fudd fudi fuff fufu fuid fuir fuit fumi fumo fuor fur- furi furm furo furr furt futi futo futu iddm iddo idid idio idir idrf idro iduo ifid ifim ifit ifor ifrf ifri ifto iiii iiio iiit iioi iioo iitm iitr iitt iium imdi imdt imfi imid imir imit immi immo immt imod imof imou imri imro imrr imto iod- iodd iodo ioii ioio ioit iomo ioof iooi iooo iori iotf ioto irdo irfm irfu iri- irid irio irmo irod irri irtf irti itdo itif itim itmo itof itoi itoo itor itou itrf itri ittf itto itum itur iuiu mddm mdfi mdii mdmf mdot mdud mfor mfou mfri mftf mid- midi mido miff mifi miii miio miit mim- mimd mimi mimo mio- mird miri miro mirr mirt miru mit- miti mitm mito mitt mitu miui mmdf mmdi mmfd mmff mmii mmmd mmmm mmod mmor mmrf modd modi modo modu moff mofo mofu moif moii moio moir moit momi momo momu mood moor moot mord morf mori moro mort moru motd moti motm moto mott motu moud mouf mour mout mrdd mrmd mrtm mrtt mrud mtff mtom mtor mtrr mttr mudd mudi mudu muff mufi mufu muid muir muit mumm mumo mumu murd muri muro murr murt muru muti muto mutt mutu muut oddd oddi odio odir odiu odmr odom odoo odor odot odou odtu odum odur ofdr off- offo offr offu ofid ofit ofor oido oiii oirt oiti oium omid omim omio omit omo- omoi omoo omor omri omro omuo oodi ooff ooid oooo oord oort ordo ordu orff orfi orfu ori- orid orif orio orit ormo oro- orof orom oror orot orri orro orto orum otif otit oto- otof otoo otor otro otti otto ottu otur ouff ouii ouir ouit oumi our- ouro ourt out- outi outo ouu- rdio rfdi rfid ridd ridi rido riff rift rifu riif rimi rimm rimo rimu riom riot riou riri riti rito ritt ritu rmif rmtu rodd rodi rodo roff rofo roid roif roio roir roit roiu romd romi romm romo rood roof rooi room roor root rori roro rort roru roti roto rotr rott roud rouf roum rout rrif rrrr rrum rtdt rtfm rtmi rudd rudi rudo ruff rufo ruft ruid ruif ruit rumi rumm rumo rumt rurd ruri ruro ruru ruti ruto rutt rutu ruud t-mo tdff tdmi tdor tdri tfot tidd tiff tifo tift tiit tiiu timi timm timo timu tiou tird tiri tiro tirr tiru titi tito titt titu tium tmou tmro tmtt todd todi todo todt todu toff tofi tofo toft tofu toid toit tomi tomm tomo tomt tood toof toom toor toot tord torf tori torm toro torr tort toru totd toti totm toto totr tott toui toum tour tout trfd trfm trfr tri- trif trim trio trit trmd trmi trmu trod troi trom troo trot trou trtr trud trut truu ttff ttim tttt tudi tudu tuff tufi tufm tufo tuft tufu tuim tuit tuiu tumi tumu tuor turd turf turi turm turo turr turt turu tuti tuto tutt tutu tuum tuuo uddi udid udim udir udoo udot uirr umff umit ummo umor umri umut uofm uofo uomo uor- urdu urff urfi urft urif urim uriu urmi uro- urom uroo urri urum urur urut utfo utid utor utri utti utto uttu uuri uutf uuuu