a-a a-i a-t aaa aai aam aas aat ai- aia aii aim ais ait ama ami amm ams amt as- asa asi asm ass ast at- ata ati atm ats att ia- iaa iai iam ias iat iia iii iim iis iit im- ima imi imm ims imt is- isa isi ism iss ist ita iti itm its itt maa mai mam mas mat mi- mia mii mim mis mit mma mmi mmm mms mmt msa msi msm mss mst mta mti mtm mts mtt saa sai sam sas sat sia sii sim sis sit sma smi smm sms smt ss- ssa ssi ssm sss sst sta sti stm sts stt taa tai tam tas tat tia tii tim tis tit tma tmi tmm tms tmt tsa tsi tsm tss tst tta tti ttm tts ttt