a-a a-b a-i a-t aaa aab aai aam aan aar aat ab- aba abb abi abm abn abr abt ai- aia aib aii aim ain air ait ama amb ami amm amn amr amt an- ana anb ani anm ann anr ant ar- ara arb ari arm arn arr art at- ata atb ati atm atn atr att baa bab bai bam ban bar bat bba bbb bbi bbm bbn bbr bbt bi- bia bib bii bim bin bir bit bma bmb bmi bmm bmn bmr bmt bna bnb bni bnn bnr bnt bra brb bri brm brn brr brt bta btb bti btm btn btr btt ia- iaa iab iai iam ian iar iat iba ibb ibi ibm ibn ibr ibt iia iib iii iim iin iir iit im- ima imb imi imm imn imt in- ina inb ini inm inn inr int ir- ira irb iri irm irn irr irt ita itb iti itm itn itt m-r maa mab mai mam man mar mat mba mbb mbi mbm mbr mbt mi- mia mib mii mim min mir mit mma mmb mmi mmm mmn mmr mmt mna mnb mni mnm mnn mnr mnt mra mrb mri mrm mrn mrr mrt mta mtb mti mtm mtn mtr mtt n-i naa nab nai nam nan nar nat nba nbb nbi nbm nbn nbr nbt nia nib nii nim nin nir nit nma nmb nmi nmm nmn nmr nmt nna nnb nni nnm nnn nnt nra nrb nri nrm nrn nrr nrt nta ntb nti ntm ntn ntr ntt ra- raa rab rai ram ran rar rat rba rbb rbi rbm rbn rbr rbt ria rib rii rim rin rir rit rma rmb rmi rmm rmn rmr rmt rna rnb rni rnm rnn rnr rnt rra rrb rri rrm rrn rrr rrt rta rtb rti rtm rtn rtr rtt taa tab tai tam tan tar tat tba tbb tbi tbm tbn tbr tbt tia tib tii tim tin tir tit tma tmb tmi tmm tmn tmr tmt tna tnb tni tnm tnn tnr tnt tra trb tri trm trn trr trt tta ttb tti ttm ttn ttr ttt