ktrl ktrr ktrt kttc kttk kttr kttt laaa laac laak laal laar laat laba labe labr laca lacc lace lack lacl lact lael laer laet laka lake lala lale lall lara larb larc lare lark larr lart lata latc late latt lbar lbcc lblr lbrt lcac lcat lcbc lcca lccc lcce lcer lcra lcrl lctl leaa leak leal lear leat leba leca lece leck lect leea leek leel leer leet leka leke lekk lela lele lell lera lerc lere lerk lert leta lete lett lkab lkal llat llcc llet lllc llll lrac lral lrat lrba lrrc lrrr lrta ltac ltae ltbl ltcc ltee ltke ltra lttc lttr raab raak raat raba rabb rabe rabk rabl rac- raca racc race rack ract raec rael raer raka rake rakk rakt rala ralb rale rall ralt rara rarb rare rark rata rate ratk ratt rbbb rbbr rbcl rble rcac rcbc rccb rccc rcet rcle rctc rea- reac reae reak real rear reat reba rebb rebe rebk reca recc rece reck recr rect reeb reek reel reet reka reke rekt rela relb rele rell relt rera rere rert reta rete retr rett rlab rlee rrat rrle rrrr rtca rtcc rtce rtee rtle rtlt taa- taal taar taat taba tabb tabc tabe tabl taca tacc tace tack tacl tact taec tael taer taka take takk takt tala talc tale talk tall tara tarb tarc tare tark tarr tart tata tatb tate tatr tatt tbar tbca tbcb tbcc tbce tbrb tbta tcca tccc tctc teac teak teal tear teat teba teca teck tecl tecr tect teec teek teel teer teet teka teke tel- tela telc tele tell telt ter- tera terc tere terk terr teta tete tetr tett tkac tlac traa trab trac trae trak tral trat trca trcc trcl tre- trea trec tree trek tret trra trtc trte trtr ttab ttbb tter tttt