a-a a-b a-i a-t aaa aab aai aam aar aat aau ab- aba abb abi abm abr abt abu ai- aia aib aii aim air ait aiu ama amb ami amm amr amt amu ar- ara arb ari arm arr art aru at- ata atb ati atm atr att atu au- aua aub aui aum aur aut b-u baa bab bai bam bar bat bau bba bbb bbi bbm bbr bbt bbu bi- bia bib bii bim bir bit biu bma bmb bmi bmm bmr bmt bmu bra brb bri brm brr brt bru bta btb bti btm btr btt btu bua bub bui bum bur but buu ia- iaa iab iai iam iar iat iau iba ibb ibi ibm ibr ibt ibu iia iib iii iim iir iit iiu im- ima imb imi imm imt imu ir- ira irb iri irm irr irt iru ita itb iti itm itt itu iu- iua iub iui ium iur iut m-r maa mab mai mam mar mat mau mba mbb mbi mbm mbr mbt mbu mi- mia mib mii mim mir mit miu mma mmb mmi mmm mmr mmt mmu mra mrb mri mrm mrr mrt mru mta mtb mti mtm mtr mtt mtu mua mub mui mum mur mut muu ra- raa rab rai ram rar rat rau rba rbb rbi rbm rbr rbt rbu ria rib rii rim rir rit rma rmb rmi rmm rmr rmt rra rrb rri rrm rrr rrt rru rta rtb rti rtm rtr rtt rtu rua rub rui rum rur rut ruu taa tab tai tam tar tat tau tba tbb tbi tbm tbr tbt tbu tia tib tii tim tir tit tiu tma tmb tmi tmm tmr tmt tmu tra trb tri trm trr trt tru tta ttb tti ttm ttr ttt ttu tua tub tui tum tur tut tuu ua- uaa uab uai uam uar uat uau uba ubb ubi ubr ubt ubu uia uib uii uim uir uit uiu um- uma umb umi umm umr umt umu ur- ura urb uri urm urr urt uru uta utb uti utm utr utt utu uua uum uur uut uuu