dddd ddot didi dido diii dili dill dilo diol dior diot dird dirl dirr dirt diti dito ditt dlii dlil dlit dod- dodd dodi dodo doid doil doit dold doli doll dolo dolt dood dool door doot dord dori doro dorr dort dotd doti doto dott dril drit drod drol drot dtor dtot dtrl iddo idid idil idio idir idli idol idro iiii iiio iiit iioi iioo iitr iitt ilio ilir ilit ill- illd illi illo illt iloo ilot iod- iodd iodo ioii ioio ioit iolo iooi iooo iori ioto irdo iri- irid iril irio irod irri irti itdo itil itll itoi itol itoo itor itri itto lidl lido liii liir lili lill lilo lilt lio- liod lior lird liri lirl liro lirr lirt litd liti litl lito litr litt llll llod lloo lodi loid loir loit lold loli loll lolo lood lool loor loot lord lori loro lotd loti lotl loto lotr lott lrdd lroi lrrr lttr oddd oddi odio odir odoo odor odot odrl oido oiii oirt oiti olid olio olit olli ollo olor olot oodi ooid oold oolo oooo oord oort ordo ori- orid oril orio orit orlo oro- oror orot orri orro orto otit oto- otoo otor otro otti otto rdio ridd ridi rido rill rilo riol riot riri riti ritl rito ritt rldt rodd rodi rodo roid roil roio roir roit rold roll rolo rolt rood rooi rool roor root rori roro rort roti rotl roto rotr rott rrrr rtdt rtlt tdil tdor tdri tidd tiit tild till tilo tilr tilt tird tiri tirl tiro tirr titi tito titt tldr tlli todd todi todo todt toid toil toit tol- told toli toll tolo tolt tood tool toor toot tord tori toro torr tort totd toti toto totr tott tri- tril trio trit trod troi troo trot trtr tttt