-al -ol a-a a-b a-i aaa aab aai aak aal aam aao aar ab- aba abb abi abk abl abm abo abr ai- aia aib aii aik ail aim aio air aka akb aki akk akl akm ako akr al- ala alb ali alk all alm alo alr ama amb ami amk aml amm amo amr aoa aob aoi aok aol aom aoo aor ar- ara arb ari ark arl arm aro arr baa bab bai bak bal bam bao bar bba bbb bbi bbk bbl bbm bbo bbr bi- bia bib bii bik bil bim bio bir bka bkb bkk bkl bkm bko bkr bla blb bli blk bll blm blo blr bma bmb bmi bmk bml bmm bmo bmr boa bob boi bok bol bom boo bor bra brb bri brk brl brm bro brr ia- iaa iab iai ial iam iao iar iba ibb ibi ibk ibl ibm ibo ibr iia iib iii iil iim iio iir ika ikb iki ikk ikl iko ikr il- ila ilb ili ilk ill ilm ilo ilr im- ima imb imi iml imm imo io- ioa iob ioi iol iom ioo ior ir- ira irb iri irk irl irm iro irr ka- kaa kab kai kak kal kam kao kar kba kbb kbi kbk kbl kbm kbo kbr kia kib kii kik kil kim kio kir kkb kki kkk kkl kkm kkr kl- kla klb kli klm klo klr kma kmb kmi kmk kml kmm kmo koa kob koi kok kol kom koo kor kra kri krk krl kro krr la- laa lab lai lak lal lam lao lar lba lbb lbi lbk lbl lbm lbo lbr lia lib lii lik lil lim lio lir lka lkb lkl lkr lla llb lli llk lll llm llo llr lma lmb lmi lmk lml lmm lmo lmr loa lob loi lok lol lom loo lor lra lrb lri lrk lrm lro lrr m-o m-r maa mab mai mak mal mam mao mar mba mbb mbi mbk mbl mbm mbo mbr mi- mia mib mii mik mil mim mio mir mka mkb mkk mkl mkm mko mkr mla mlb mli mlk mll mlm mlo mlr mma mmb mmi mmk mml mmm mmo mmr moa mob moi mok mol mom moo mor mra mrb mri mrk mrl mrm mro mrr o-i oaa oab oai oak oal oam oao oar ob- oba obb obi obk obl obm obo obr oia oib oii oik oil oim oio oir oka okb oki okk okl oko okr ola olb oli olk oll olm olo om- oma omb omi oml omm omo omr oo- ooa oob ooi ook ool oom ooo oor or- ora orb ori ork orl orm oro orr ra- raa rab rai rak ral ram rao rar rba rbb rbi rbk rbl rbm rbo rbr ria rib rii rik ril rim rio rir rkb rkk rkm rko rla rli rll rlm rlo rlr rma rmb rmi rml rmm rmo rmr roa rob roi rok rol rom roo ror rra rrb rri rrk rrl rrm rrr