a-a a-b a-i a-t aaa aab aai aak aam aar aat ab- aba abb abi abk abm abr abt ai- aia aib aii aik aim air ait aka akb aki akk akm akr ama amb ami amk amm amr amt ar- ara arb ari ark arm arr art at- ata atb ati atm atr att baa bab bai bak bam bar bat bba bbb bbi bbk bbm bbr bbt bi- bia bib bii bik bim bir bit bka bkb bkk bkm bkr bkt bma bmb bmi bmk bmm bmr bmt bra brb bri brk brm brr brt bta btb bti btk btm btr btt ia- iaa iab iai iam iar iat iba ibb ibi ibk ibm ibr ibt iia iib iii iim iir iit ika ikb iki ikk ikr ikt im- ima imb imi imm imt ir- ira irb iri irk irm irr irt ita itb iti itk itm itt k-t ka- kaa kab kai kak kam kar kat kba kbb kbi kbk kbm kbr kia kib kii kik kim kir kit kkb kki kkk kkm kkr kkt kma kmb kmi kmk kmm kmt kra kri krk krr krt kta ktb ktk ktm ktr ktt m-r maa mab mai mak mam mar mat mba mbb mbi mbk mbm mbr mbt mi- mia mib mii mik mim mir mit mka mkb mkk mkm mkr mkt mma mmb mmi mmk mmm mmr mmt mra mrb mri mrk mrm mrr mrt mta mtb mti mtk mtm mtr mtt ra- raa rab rai rak ram rar rat rba rbb rbi rbk rbm rbr rbt ria rib rii rik rim rir rit rkb rkk rkm rkt rma rmb rmi rmm rmr rmt rra rrb rri rrk rrm rrr rrt rta rtb rti rtk rtm rtr rtt taa tab tai tak tam tar tat tba tbb tbi tbk tbm tbr tbt tia tib tii tik tim tir tit tka tkb tkk tkm tkr tkt tma tmb tmi tmk tmm tmr tmt tra trb tri trk trm trr trt tta ttb tti ttk ttm ttr ttt