a-a a-b a-i a-t aaa aab aai aam aap aas aat ab- aba abb abi abm abp abs abt ai- aia aib aii aim aip ais ait ama amb ami amm amp ams amt ap- apa apb api apm app aps apt as- asa asb asi asm asp ass ast at- ata atb ati atm atp ats att b-p baa bab bai bam bap bas bat bba bbb bbi bbm bbp bbs bbt bi- bia bib bii bim bip bis bit bma bmb bmi bmm bmp bms bmt bpa bpb bpi bpm bpp bps bpt bsa bsb bsi bsm bsp bss bst bta btb bti btm btp bts btt ia- iaa iab iai iam iap ias iat iba ibb ibi ibm ibp ibs ibt iia iib iii iim iip iis iit im- ima imb imi imm imp ims imt ipa ipb ipi ipm ipp ips ipt is- isa isb isi ism isp iss ist ita itb iti itm itp its itt maa mab mai mam map mas mat mba mbb mbi mbm mbp mbs mbt mi- mia mib mii mim mip mis mit mma mmb mmi mmm mmp mms mmt mpa mpb mpi mpm mpp mps mpt msa msb msi msm msp mss mst mta mtb mti mtm mtp mts mtt p-p paa pab pai pam pap pas pat pba pbb pbi pbm pbp pbs pbt pia pib pii pim pip pis pit pma pmb pmi pmm pmp pms pmt ppa ppb ppi ppm ppp pps ppt ps- psa psb psi psm psp pss pst pt- pta ptb pti ptm ptp pts ptt saa sab sai sam sap sas sat sba sbb sbi sbm sbp sbs sbt sia sib sii sim sip sis sit sma smb smi smm smp sms smt spa spb spi spm spp sps spt ss- ssa ssb ssi ssm ssp sss sst sta stb sti stm stp sts stt taa tab tai tam tap tas tat tba tbb tbi tbm tbp tbs tbt tia tib tii tim tip tis tit tma tmb tmi tmm tmp tms tmt tpa tpb tpi tpm tpp tps tpt tsa tsb tsi tsm tsp tss tst tta ttb tti ttm ttp tts ttt