-er -th a-a a-c a-t aaa aac aae aag aah aan aap aar aat ac- aca acc ace acg ach acn acp acr act aea aec aee aeg aeh aen aep aer aet ag- aga agc age agg agh agn agp agr agt aha ahc ahe ahg ahh ahn ahp ahr aht an- ana anc ane ang anh ann anp anr ant ap- apa apc ape apg aph apn app apr apt ar- ara arc are arg arh arn arp arr art at- ata atc ate atg ath atn atp atr att c-- caa cac cae cag cah can cap car cat cca ccc cce ccg cch ccn ccp ccr cct ce- cea cec cee ceg ceh cen cep cer cet cga cgc cge cgg cgh cgn cgp cgr cgt ch- cha chc che chg chh chn chp chr cht cn- cna cnc cne cng cnh cnn cnp cnr cnt cpa cpc cpe cpg cph cpn cpp cpr cpt cra crc cre crg crh crn crp crr crt cta ctc cte ctg cth ctn ctp ctr ctt eaa eac eae eag eah ean eap ear eat ec- eca ecc ece ecg ech ecn ecr ect eea eec eee eeg een eep eer eet ega egc ege egg egh egn egp egr egt eha ehc ehe ehg ehh ehn ehp ehr eht en- ena enc ene eng enh enn enp enr ent ep- epa epc epe epg eph epn epp epr ept era erc ere erg erh ern erp err ert eta etc ete etg eth etn etp etr ett g-p gaa gac gae gag gah gan gap gar gat gca gcc gce gcg gch gcn gcp gcr gct ge- gea gec gee geg geh gen gep ger get gga ggc ggg ggh ggn ggp ggr ggt gha ghc ghe ghg ghh ghn ghp ghr ght gna gnc gne gnn gnp gnr gnt gpa gpc gpe gpg gph gpn gpp gpr gpt gra grc gre grg grh grn grp grr grt gta gtc gte gtg gth gtn gtp gtr gtt haa hac hae hag hah han hap har hat hca hcc hce hcg hch hcn hcp hcr hct he- hea hec hee heg heh hen hep her het hga hgc hge hgg hgh hgn hgp hgr hgt hha hhc hhe hhg hhh hhn hhp hhr hht hna hnc hne hng hnh hnn hnt hpa hpc hpe hpg hph hpn hpp hpr hpt hr- hra hrc hre hrg hrh hrn hrp hrr hrt hta htc hte htg hth htn htp htr htt naa nac nae nag nah nan nap nar nat nca ncc nce ncg nch ncn ncp ncr nct ne- nea nec nee neg neh nen nep ner net nga ngc nge ngg ngh ngn ngp ngt nha nhc nhe nhg nhh nhn nhp nhr nht nna nnc nne nng nnh nnn nnp nnt npa npc npe npg nph npn npp npr npt nra nrc nre nrg nrn nrp nrr nrt nta ntc nte ntg nth ntn ntp ntr ntt p-p paa pac pae pag pah pan pap par pat pca pcc pce pcg pch pcn pcp pcr pct pea pec pee peg peh pen pep per pet pga pgc pge pgg pgh pgn pgp pgr pgt pha phc phe phg phn php phr pht pn- pna pnc pne png pnh pnn pnp pnr pnt ppa ppc ppe ppg pph ppn ppp ppr ppt pra prc pre prg prh prn prp prr prt pt- pta ptc pte ptg pth ptn ptp ptr ptt ra- raa rac rae rag rah ran rap rar rat rca rcc rce rcg rch rcn rcp rcr rct re- rea rec ree reg reh ren rep rer ret rga rgc rge rgg rgh rgn rgp rgr rgt rh- rha rhc rhe rhg rhh rhn rhp rhr rht rna rnc rng rnh rnn rnp rnr rnt rpa rpc rpe rpg rph rpn rpp rpr rpt rra rrc rrg rrh rrn rrp rrr rrt rta rtc rte rtg rtn rtp rtr rtt taa tac tae tag tah tan tap tar tat tca tcc tce tcg tch tcn tcp tcr tct te- tea tec tee teg teh ten tep ter tet tga tgc tge tgg tgh tgn tgp tgr tgt th- tha thc the thg thh thn thp thr tht tna tnc tne tng tnh tnn tnp tnr tnt tpa tpc tpe tpg tph tpn tpp tpr tpt tra trc tre trg trh trn trp trr trt tta ttc tte ttg tth ttn ttp ttr ttt