a-a a-t aaa aam aan aas aat ama amm amn ams amt an- ana anm ann ans ant as- asa asm asn ass ast at- ata atm atn ats att maa mam man mas mat mma mmm mmn mms mmt mna mnm mnn mns mnt msa msm msn mss mst mta mtm mtn mts mtt naa nam nan nas nat nma nmm nmn nms nmt nna nnm nnn nns nnt nsa nsm nsn nss nst nta ntm ntn nts ntt saa sam san sas sat sma smm smn sms smt sna snm snn sns snt ss- ssa ssm ssn sss sst sta stm stn sts stt taa tam tan tas tat tma tmm tmn tms tmt tna tnm tnn tns tnt tsa tsm tsn tss tst tta ttm ttn tts ttt