a-a a-b a-i a-t aaa aab aai aam aan aar aas aat ab- aba abb abi abm abn abr abs abt ai- aia aib aii aim ain air ais ait ama amb ami amm amn amr ams amt an- ana anb ani anm ann anr ans ant ar- ara arb ari arm arn arr ars art as- asa asb asi asm asn asr ass ast at- ata atb ati atm atn atr ats att baa bab bai bam ban bar bas bat bba bbb bbi bbm bbn bbr bbs bbt bi- bia bib bii bim bin bir bis bit bma bmb bmi bmm bmn bmr bms bmt bna bnb bni bnn bnr bns bnt bra brb bri brm brn brr brs brt bsa bsb bsi bsm bsn bsr bss bst bta btb bti btm btn btr bts btt ia- iaa iab iai iam ian iar ias iat iba ibb ibi ibm ibn ibr ibs ibt iia iib iii iim iin iir iis iit im- ima imb imi imm imn ims imt in- ina inb ini inm inn inr ins int ir- ira irb iri irm irn irr irs irt is- isa isb isi ism isn isr iss ist ita itb iti itm itn its itt m-r maa mab mai mam man mar mas mat mba mbb mbi mbm mbr mbs mbt mi- mia mib mii mim min mir mis mit mma mmb mmi mmm mmn mmr mms mmt mna mnb mni mnm mnn mnr mns mnt mra mrb mri mrm mrn mrr mrs mrt msa msb msi msm msn msr mss mst mta mtb mti mtm mtn mtr mts mtt n-i naa nab nai nam nan nar nas nat nba nbb nbi nbm nbn nbr nbs nbt nia nib nii nim nin nir nis nit nma nmb nmi nmm nmn nmr nms nmt nna nnb nni nnm nnn nns nnt nra nrb nri nrm nrn nrr nrs nrt nsa nsb nsi nsm nsn nsr nss nst nta ntb nti ntm ntn ntr nts ntt ra- raa rab rai ram ran rar ras rat rba rbb rbi rbm rbn rbr rbs rbt ria rib rii rim rin rir ris rit rma rmb rmi rmm rmn rmr rms rmt rna rnb rni rnm rnn rnr rns rnt rra rrb rri rrm rrn rrr rrs rrt rsa rsb rsi rsm rsn rsr rss rst rta rtb rti rtm rtn rtr rts rtt saa sab sai sam san sar sas sat sba sbb sbi sbm sbn sbr sbs sbt sia sib sii sim sin sir sis sit sma smb smi smm smn smr sms smt sna snb sni snm snn snr sns snt sr- sra srb sri srm srn srr srs srt ss- ssa ssb ssi ssm ssn ssr sss sst sta stb sti stm stn str sts stt taa tab tai tam tan tar tas tat tba tbb tbi tbm tbn tbr tbs tbt tia tib tii tim tin tir tis tit tma tmb tmi tmm tmn tmr tms tmt tna tnb tni tnm tnn tnr tns tnt tra trb tri trm trn trr trs trt tsa tsb tsi tsm tsn tsr tss tst tta ttb tti ttm ttn ttr tts ttt