a-a a-t aaa aag aam aas aat ag- aga agg agm ags agt ama amg amm ams amt as- asa asg asm ass ast at- ata atg atm ats att gaa gag gam gas gat gga ggg ggm ggs ggt gma gmg gmm gms gmt gsa gsg gsm gss gst gta gtg gtm gts gtt maa mag mam mas mat mga mgm mgs mgt mma mmg mmm mms mmt msa msg msm mss mst mta mtg mtm mts mtt saa sag sam sas sat sga sgg sgm sgs sgt sma smg smm sms smt ss- ssa ssg ssm sss sst sta stg stm sts stt taa tag tam tas tat tga tgg tgm tgs tgt tma tmg tmm tms tmt tsa tsg tsm tss tst tta ttg ttm tts ttt