a-a a-q a-t aaa aam aaq aas aat ama amm amq ams amt aqa aqm aqs aqt as- asa asm asq ass ast at- ata atm ats att maa mam mas mat mma mmm mms mmt mqa mqt msa msm msq mss mst mta mtm mts mtt qaa qam qas qat qma qms qqq qsa qsm qst qta qtm qtq qts saa sam saq sas sat sma smm sms smt sqa sqm sqq sqs ss- ssa ssm ssq sss sst sta stm stq sts stt taa tam taq tas tat tma tmm tmq tms tmt tqm tsa tsm tsq tss tst tta ttm tts ttt