a-a a-b a-i a-t aaa aab aai aam aar aas aat aau ab- aba abb abi abm abr abs abt abu ai- aia aib aii aim air ais ait aiu ama amb ami amm amr ams amt amu ar- ara arb ari arm arr ars art aru as- asa asb asi asm asr ass ast asu at- ata atb ati atm atr ats att atu au- aua aub aui aum aur aus aut b-u baa bab bai bam bar bas bat bau bba bbb bbi bbm bbr bbs bbt bbu bi- bia bib bii bim bir bis bit biu bma bmb bmi bmm bmr bms bmt bmu bra brb bri brm brr brs brt bru bsa bsb bsi bsm bsr bss bst bsu bta btb bti btm btr bts btt btu bua bub bui bum bur bus but buu ia- iaa iab iai iam iar ias iat iau iba ibb ibi ibm ibr ibs ibt ibu iia iib iii iim iir iis iit iiu im- ima imb imi imm ims imt imu ir- ira irb iri irm irr irs irt iru is- isa isb isi ism isr iss ist isu ita itb iti itm its itt itu iu- iua iub iui ium iur ius iut m-r maa mab mai mam mar mas mat mau mba mbb mbi mbm mbr mbs mbt mbu mi- mia mib mii mim mir mis mit miu mma mmb mmi mmm mmr mms mmt mmu mra mrb mri mrm mrr mrs mrt mru msa msb msi msm msr mss mst msu mta mtb mti mtm mtr mts mtt mtu mua mub mui mum mur mus mut muu ra- raa rab rai ram rar ras rat rau rba rbb rbi rbm rbr rbs rbt rbu ria rib rii rim rir ris rit rma rmb rmi rmm rmr rms rmt rra rrb rri rrm rrr rrs rrt rru rsa rsb rsi rsm rsr rss rst rsu rta rtb rti rtm rtr rts rtt rtu rua rub rui rum rur rus rut ruu saa sab sai sam sar sas sat sau sba sbb sbi sbm sbr sbs sbt sbu sia sib sii sim sir sis sit siu sma smb smi smm smr sms smt smu sr- sra srb sri srm srr srs srt ss- ssa ssb ssi ssm ssr sss sst ssu sta stb sti stm str sts stt stu sua sub sui sum sur sus sut suu taa tab tai tam tar tas tat tau tba tbb tbi tbm tbr tbs tbt tbu tia tib tii tim tir tis tit tiu tma tmb tmi tmm tmr tms tmt tmu tra trb tri trm trr trs trt tru tsa tsb tsi tsm tsr tss tst tsu tta ttb tti ttm ttr tts ttt ttu tua tub tui tum tur tus tut tuu ua- uaa uab uai uam uar uas uat uau uba ubb ubi ubr ubs ubt ubu uia uib uii uim uir uis uit uiu um- uma umb umi umm umr ums umt umu ur- ura urb uri urm urr urs urt uru usa usb usi usm usr uss ust usu uta utb uti utm utr uts utt utu uua uum uur uus uut uuu