-er a-a a-c a-t aaa aac aae aag aap aar aat ac- aca acc ace acg acp acr act aea aec aee aeg aep aer aet ag- aga agc age agg agp agr agt ap- apa apc ape apg app apr apt ar- ara arc are arg arp arr art at- ata atc ate atg atp atr att c-- caa cac cae cag cap car cat cca ccc cce ccg ccp ccr cct ce- cea cec cee ceg cep cer cet cga cgc cge cgg cgp cgr cgt cpa cpc cpe cpg cpp cpr cpt cra crc cre crg crp crr crt cta ctc cte ctg ctp ctr ctt eaa eac eae eag eap ear eat ec- eca ecc ece ecg ecr ect eea eec eee eeg eep eer eet ega egc ege egg egp egr egt ep- epa epc epe epg epp epr ept era erc ere erg erp err ert eta etc ete etg etp etr ett g-p gaa gac gae gag gap gar gat gca gcc gce gcg gcp gcr gct ge- gea gec gee geg gep ger get gga ggc ggg ggp ggr ggt gpa gpc gpe gpg gpp gpr gpt gra grc gre grg grp grr grt gta gtc gte gtg gtp gtr gtt p-p paa pac pae pag pap par pat pca pcc pce pcg pcp pcr pct pea pec pee peg pep per pet pga pgc pge pgg pgp pgr pgt ppa ppc ppe ppg ppp ppr ppt pra prc pre prg prp prr prt pt- pta ptc pte ptg ptp ptr ptt ra- raa rac rae rag rap rar rat rca rcc rce rcg rcp rcr rct re- rea rec ree reg rep rer ret rga rgc rge rgg rgp rgr rgt rpa rpc rpe rpg rpp rpr rpt rra rrc rrg rrp rrr rrt rta rtc rte rtg rtp rtr rtt taa tac tae tag tap tar tat tca tcc tce tcg tcp tcr tct te- tea tec tee teg tep ter tet tga tgc tge tgg tgp tgr tgt tpa tpc tpe tpg tpp tpr tpt tra trc tre trg trp trr trt tta ttc tte ttg ttp ttr ttt