-er a-a a-c a-t aaa aac aae aag aam aao aap aar aas aat ac- aca acc ace acg acm aco acp acr acs act aea aec aee aeg aem aeo aep aer aes aet ag- aga agc age agg agm ago agp agr ags agt ama amc ame amg amm amo amp amr ams amt aoa aoc aoe aog aom aoo aop aor aos aot ap- apa apc ape apg apm apo app apr aps apt ar- ara arc are arg arm aro arp arr ars art as- asa asc ase asg asm aso asp asr ass ast at- ata atc ate atg atm ato atp atr ats att c-- caa cac cae cag cam cao cap car cas cat cca ccc cce ccg ccm cco ccp ccr ccs cct ce- cea cec cee ceg cem ceo cep cer ces cet cga cgc cge cgg cgm cgo cgp cgr cgs cgt cma cmc cme cmg cmm cmo cmp cmr cms cmt co- coa coc coe cog com coo cop cor cos cot cpa cpc cpe cpg cpm cpo cpp cpr cps cpt cra crc cre crg crm cro crp crr crs crt csa csc cse csg csm cso csp csr css cst cta ctc cte ctg ctm cto ctp ctr cts ctt eaa eac eae eag eam eao eap ear eas eat ec- eca ecc ece ecg ecm eco ecr ecs ect eea eec eee eeg eem eeo eep eer ees eet ega egc ege egg egm ego egp egr egs egt em- ema emc eme emg emm emo emp emr ems emt eo- eoa eoc eoe eog eom eoo eop eor eos eot ep- epa epc epe epg epm epo epp epr eps ept era erc ere erg erm ero erp err ers ert es- esa esc ese esg esm eso esp esr ess est eta etc ete etg etm eto etp etr ets ett g-p gaa gac gae gag gam gao gap gar gas gat gca gcc gce gcg gcm gco gcp gcr gcs gct ge- gea gec gee geg gem geo gep ger ges get gga ggc ggg ggm ggo ggp ggr ggs ggt gma gmc gme gmg gmm gmo gmp gmr gms gmt goa goc goe gog gom goo gop gor gos got gpa gpc gpe gpg gpm gpo gpp gpr gps gpt gra grc gre grg grm gro grp grr grs grt gsa gsc gse gsg gsm gso gsp gsr gss gst gta gtc gte gtg gtm gto gtp gtr gts gtt m-o m-r maa mac mae mag mam mao map mar mas mat mc- mca mcc mce mcg mcm mco mcp mcr mcs mct mea mec mee meg mem meo mep mer mes met mga mgc mge mgm mgo mgp mgr mgs mgt mma mmc mme mmg mmm mmo mmp mmr mms mmt moa moc moe mog mom moo mop mor mos mot mpa mpc mpe mpg mpm mpo mpp mpr mps mpt mra mrc mre mrg mrm mro mrp mrr mrs mrt msa msc mse msg msm mso msp msr mss mst mta mtc mte mtg mtm mto mtp mtr mts mtt oaa oac oae oag oam oao oap oar oas oat oc- oca occ ocg ocm oco ocp ocr ocs oct oea oec oee oeg oem oeo oep oer oes oet oga ogc oge ogg ogo ogp ogs ogt om- oma omc ome omg omm omo omp omr oms omt oo- ooa ooc oog oom ooo oop oor oos oot op- opa opc ope opg opm opo opp opr ops opt or- ora orc ore org orm oro orp orr ors ort os- osa osc ose osg osm oso osp osr oss ost ot- ota otc ote otg otm oto otp otr ots ott p-p paa pac pae pag pam pao pap par pas pat pca pcc pce pcg pcm pco pcp pcr pcs pct pea pec pee peg pem peo pep per pes pet pga pgc pge pgg pgm pgo pgp pgr pgs pgt pma pmc pme pmg pmm pmo pmp pmr pms pmt poa poc poe pog pom poo pop por pos pot ppa ppc ppe ppg ppm ppo ppp ppr pps ppt pra prc pre prg prm pro prp prr prs prt ps- psa psc pse psg psm pso psp psr pss pst pt- pta ptc pte ptg ptm pto ptp ptr pts ptt ra- raa rac rae rag ram rao rap rar ras rat rca rcc rce rcg rcm rco rcp rcr rcs rct re- rea rec ree reg rem reo rep rer res ret rga rgc rge rgg rgo rgp rgr rgs rgt rma rmc rme rmg rmm rmo rmp rmr rms rmt roa roc roe rog rom roo rop ror ros rot rpa rpc rpe rpg rpm rpo rpp rpr rps rpt rra rrc rrg rrm rrp rrr rrs rrt rsa rsc rse rsg rsm rso rsp rsr rss rst rta rtc rte rtg rtm rto rtp rtr rts rtt saa sac sae sag sam sao sap sar sas sat sca scc sce scg scm sco scp scr scs sct se- sea sec see seg sem seo sep ser ses set sga sgc sge sgg sgm sgo sgp sgr sgs sgt sma smc sme smg smm smo smp smr sms smt soa soc soe sog som soo sop sor sos sot spa spc spe spg spm spo spp spr sps spt sr- sra src sre srg srm sro srp srr srs srt ss- ssa ssc sse ssg ssm sso ssp ssr sss sst sta stc ste stg stm sto stp str sts stt taa tac tae tag tam tao tap tar tas tat tca tcc tce tcg tcm tco tcp tcr tcs tct te- tea tec tee teg tem teo tep ter tes tet tga tgc tge tgg tgm tgo tgp tgr tgs tgt tma tmc tme tmg tmm tmo tmp tmr tms tmt to- toa toc toe tog tom too top tor tos tot tpa tpc tpe tpg tpm tpo tpp tpr tps tpt