dddd ddot didi dido didu diii dili dill dilo diol dior diot diou dird dirl dirr dirt diti dito ditt dlii dlil dlit dod- dodd dodi dodo doid doil doit dold doli doll dolo dolt dolu dood dool door doot dord dori doro dorr dort doru dotd doti doto dott doud doul dour dout dril drit drod drol drot drou drui drut druu dtor dtot dtrl dudd dudo dudu duid duil duir duit duli dull dulo dult dulu duo- duri duro durt duru duul duur duut iddo idid idil idio idir idli idol idro iduo iiii iiio iiit iioi iioo iitr iitt ilio ilir ilit ill- illd illi illo illt iloo ilot ilud ilut iod- iodd iodo ioii ioio ioit iolo iooi iooo iori ioto irdo iri- irid iril irio irod irri irti irul itdo itil itll itoi itol itoo itor itou itri itto itur iuiu lidl lido liii liir lili lill lilo lilt lilu lio- liod lior lird liri lirl liro lirr lirt liru litd liti litl lito litr litt litu liut llll llod lloo llud lodi loid loir loit loiu lold loli loll lolo lood lool loor loot lord lori loro lotd loti lotl loto lotr lott loud loui loul lour lout louu lrdd lroi lrrr lttr ludd ludi ludo luit luli lull lulu lurd luri lurt luti oddd oddi odio odir odiu odoo odor odot odou odrl odtu odur oido oiii oirt oiti olid olio olit olli ollo olor olot oltu olur oodi ooid oold oolo oooo oord oort ordo ordu ori- orid oril orio orit orlo orlu oro- oror orot orri orro orto otit oto- otoo otor otro otti otto ottu otur ouii ouir ouit ould oulu our- ouro ourt out- outi outo ouu- rdio ridd ridi rido rill rilo rilu riol riot riou riri riti ritl rito ritt ritu rldt rodd rodi rodo roid roil roio roir roit roiu rold roll rolo rolt rood rooi rool roor root rori roro rort roru roti rotl roto rotr rott roud roul rout rrrr rtdt rtlt rudd rudi rudl rudo ruid ruit rull rulo rurd ruri ruro ruru ruti rutl ruto rutt rutu ruud tdil tdor tdri tidd tiit tiiu tild till tilo tilr tilt tiou tird tiri tirl tiro tirr tiru titi tito titt titu tldr tlli todd todi todo todt todu toid toil toit tol- told toli toll tolo tolt tolu tood tool toor toot tord tori toro torr tort toru totd toti toto totr tott toui toul tour tout tri- tril trio trit trod troi troo trot trou trtr trud trut truu tttt ttul tudi tudu tuil tuit tuiu tuli tull tulo tulu tuor turd turi turo turr turt turu tuti tutl tuto tutt tutu tuuo uddi udid udir udoo udot uirr ulli ullo ullr ulo- ulti ulto ultt ulul uor- urdu uriu uro- urol uroo urri urur urut utid util utor utri utti utto uttu uulu uuri uuuu