-er a-a a-c a-t aaa aac aae aag aar aat ac- aca acc ace acg acr act aea aec aee aeg aer aet ag- aga agc age agg agr agt ar- ara arc are arg arr art at- ata atc ate atg atr att c-- caa cac cae cag car cat cca ccc cce ccg ccr cct ce- cea cec cee ceg cer cet cga cgc cge cgg cgr cgt cra crc cre crg crr crt cta ctc cte ctg ctr ctt eaa eac eae eag ear eat ec- eca ecc ece ecg ecr ect eea eec eee eeg eer eet ega egc ege egg egr egt era erc ere erg err ert eta etc ete etg etr ett gaa gac gae gag gar gat gca gcc gce gcg gcr gct ge- gea gec gee geg ger get gga ggc ggg ggr ggt gra grc gre grg grr grt gta gtc gte gtg gtr gtt ra- raa rac rae rag rar rat rca rcc rce rcg rcr rct re- rea rec ree reg rer ret rga rgc rge rgg rgr rgt rra rrc rrg rrr rrt rta rtc rte rtg rtr rtt taa tac tae tag tar tat tca tcc tce tcg tcr tct te- tea tec tee teg ter tet tga tgc tge tgg tgr tgt tra trc tre trg trr trt tta ttc tte ttg ttr ttt