-er a-a a-c a-t aaa aac aae aaf aag aam aap aar aat ac- aca acc ace acf acg acm acp acr act aea aec aee aef aeg aem aep aer aet af- afa afc afe aff afg afm afp afr aft ag- aga agc age agf agg agm agp agr agt ama amc ame amf amg amm amp amr amt ap- apa apc ape apf apg apm app apr apt ar- ara arc are arf arg arm arp arr art at- ata atc ate atf atg atm atp atr att c-- caa cac cae caf cag cam cap car cat cca ccc cce ccf ccg ccm ccp ccr cct ce- cea cec cee cef ceg cem cep cer cet cfa cfc cfe cff cfg cfm cfp cfr cft cga cgc cge cgg cgm cgp cgr cgt cma cmc cme cmf cmg cmm cmp cmr cmt cpa cpc cpe cpf cpg cpm cpp cpr cpt cra crc cre crf crg crm crp crr crt cta ctc cte ctf ctg ctm ctp ctr ctt eaa eac eae eaf eag eam eap ear eat ec- eca ecc ece ecf ecg ecm ecr ect eea eec eee eef eeg eem eep eer eet ef- efa efc efe eff efg efm efp efr eft ega egc ege egf egg egm egp egr egt em- ema emc eme emf emg emm emp emr emt ep- epa epc epe epf epg epm epp epr ept era erc ere erf erg erm erp err ert eta etc ete etf etg etm etp etr ett faa fac fae faf fag fam fap far fat fca fcc fce fcf fcg fcm fcp fcr fct fea fec fee fef feg fem fep fer fet ffa ffc ffe fff ffg ffm ffp ffr fft fga fgc fge fgf fgg fgm fgp fgr fgt fma fmc fme fmf fmg fmm fmp fmr fmt fpa fpc fpe fpg fpm fpp fpr fpt fra frc fre frf frg frm frp frr frt fta ftc fte ftf ftg ftm ftp ftr ftt g-p gaa gac gae gaf gag gam gap gar gat gca gcc gce gcf gcg gcm gcp gcr gct ge- gea gec gee gef geg gem gep ger get gfa gfc gfe gff gfm gfp gfr gft gga ggc ggg ggm ggp ggr ggt gma gmc gme gmf gmg gmm gmp gmr gmt gpa gpc gpe gpf gpg gpm gpp gpr gpt gra grc gre grf grg grm grp grr grt gta gtc gte gtf gtg gtm gtp gtr gtt m-f m-r maa mac mae maf mag mam map mar mat mc- mca mcc mce mcf mcg mcm mcp mcr mct mea mec mee mef meg mem mep mer met mfa mfc mfe mff mfg mfm mfp mfr mft mga mgc mge mgf mgm mgp mgr mgt mma mmc mme mmf mmg mmm mmp mmr mmt mpa mpc mpe mpf mpg mpm mpp mpr mpt mra mrc mre mrf mrg mrm mrp mrr mrt mta mtc mte mtf mtg mtm mtp mtr mtt p-p paa pac pae paf pag pam pap par pat pca pcc pce pcf pcg pcm pcp pcr pct pea pec pee pef peg pem pep per pet pfa pfc pfe pff pfg pfm pfp pfr pft pga pgc pge pgf pgg pgm pgp pgr pgt pma pmc pme pmf pmg pmm pmp pmr pmt ppa ppc ppe ppf ppg ppm ppp ppr ppt pra prc pre prf prg prm prp prr prt pt- pta ptc pte ptf ptg ptm ptp ptr ptt ra- raa rac rae raf rag ram rap rar rat rca rcc rce rcf rcg rcm rcp rcr rct re- rea rec ree ref reg rem rep rer ret rfa rfc rfe rff rfg rfm rfp rfr rft rga rgc rge rgf rgg rgp rgr rgt rma rmc rme rmf rmg rmm rmp rmr rmt rpa rpc rpe rpf rpg rpm rpp rpr rpt rra rrc rrf rrg rrm rrp rrr rrt rta rtc rte rtf rtg rtm rtp rtr rtt taa tac tae taf tag tam tap tar tat tca tcc tce tcf tcg tcm tcp tcr tct te- tea tec tee tef teg tem tep ter tet tfa tfc tfe tff tfg tfm tfp tfr tft tga tgc tge tgf tgg tgm tgp tgr tgt tma tmc tme tmf tmg tmm tmp tmr tmt tpa tpc tpe tpf tpg tpm tpp tpr tpt tra trc tre trf trg trm trp trr trt tta ttc tte ttf ttg ttm ttp ttr ttt