-er a-a a-c a-t aaa aac aae aag aam aan aap aar aat ac- aca acc ace acg acm acn acp acr act aea aec aee aeg aem aen aep aer aet ag- aga agc age agg agm agn agp agr agt ama amc ame amg amm amn amp amr amt an- ana anc ane ang anm ann anp anr ant ap- apa apc ape apg apm apn app apr apt ar- ara arc are arg arm arn arp arr art at- ata atc ate atg atm atn atp atr att c-- caa cac cae cag cam can cap car cat cca ccc cce ccg ccm ccn ccp ccr cct ce- cea cec cee ceg cem cen cep cer cet cga cgc cge cgg cgm cgn cgp cgr cgt cma cmc cme cmg cmm cmn cmp cmr cmt cn- cna cnc cne cng cnm cnn cnp cnr cnt cpa cpc cpe cpg cpm cpn cpp cpr cpt cra crc cre crg crm crn crp crr crt cta ctc cte ctg ctm ctn ctp ctr ctt eaa eac eae eag eam ean eap ear eat ec- eca ecc ece ecg ecm ecn ecr ect eea eec eee eeg eem een eep eer eet ega egc ege egg egm egn egp egr egt em- ema emc eme emg emm emn emp emr emt en- ena enc ene eng enm enn enp enr ent ep- epa epc epe epg epm epn epp epr ept era erc ere erg erm ern erp err ert eta etc ete etg etm etn etp etr ett g-p gaa gac gae gag gam gan gap gar gat gca gcc gce gcg gcm gcn gcp gcr gct ge- gea gec gee geg gem gen gep ger get gga ggc ggg ggm ggn ggp ggr ggt gma gmc gme gmg gmm gmn gmp gmr gmt gna gnc gne gnm gnn gnp gnr gnt gpa gpc gpe gpg gpm gpn gpp gpr gpt gra grc gre grg grm grn grp grr grt gta gtc gte gtg gtm gtn gtp gtr gtt m-r maa mac mae mag mam man map mar mat mc- mca mcc mce mcg mcm mcn mcp mcr mct mea mec mee meg mem men mep mer met mga mgc mge mgm mgn mgp mgr mgt mma mmc mme mmg mmm mmn mmp mmr mmt mna mnc mne mng mnm mnn mnp mnr mnt mpa mpc mpe mpg mpm mpn mpp mpr mpt mra mrc mre mrg mrm mrn mrp mrr mrt mta mtc mte mtg mtm mtn mtp mtr mtt naa nac nae nag nam nan nap nar nat nca ncc nce ncg ncm ncn ncp ncr nct ne- nea nec nee neg nem nen nep ner net nga ngc nge ngg ngm ngn ngp ngt nma nmc nme nmg nmm nmn nmp nmr nmt nna nnc nne nng nnm nnn nnp nnt npa npc npe npg npm npn npp npr npt nra nrc nre nrg nrm nrn nrp nrr nrt nta ntc nte ntg ntm ntn ntp ntr ntt p-p paa pac pae pag pam pan pap par pat pca pcc pce pcg pcm pcn pcp pcr pct pea pec pee peg pem pen pep per pet pga pgc pge pgg pgm pgn pgp pgr pgt pma pmc pme pmg pmm pmn pmp pmr pmt pn- pna pnc pne png pnm pnn pnp pnr pnt ppa ppc ppe ppg ppm ppn ppp ppr ppt pra prc pre prg prm prn prp prr prt pt- pta ptc pte ptg ptm ptn ptp ptr ptt ra- raa rac rae rag ram ran rap rar rat rca rcc rce rcg rcm rcn rcp rcr rct re- rea rec ree reg rem ren rep rer ret rga rgc rge rgg rgn rgp rgr rgt rma rmc rme rmg rmm rmn rmp rmr rmt rna rnc rng rnm rnn rnp rnr rnt rpa rpc rpe rpg rpm rpn rpp rpr rpt rra rrc rrg rrm rrn rrp rrr rrt rta rtc rte rtg rtm rtn rtp rtr rtt taa tac tae tag tam tan tap tar tat tca tcc tce tcg tcm tcn tcp tcr tct te- tea tec tee teg tem ten tep ter tet tga tgc tge tgg tgm tgn tgp tgr tgt tma tmc tme tmg tmm tmn tmp tmr tmt tna tnc tne tng tnm tnn tnp tnr tnt tpa tpc tpe tpg tpm tpn tpp tpr tpt tra trc tre trg trm trn trp trr trt tta ttc tte ttg ttm ttn ttp ttr ttt