-er a-a a-c aaa aac aae aag aah aak aap aar aas ac- aca acc ace acg ach ack acp acr acs aea aec aee aeg aeh aek aep aer aes ag- aga agc age agg agh agk agp agr ags aha ahc ahe ahg ahh ahk ahp ahr ahs aka akc ake akg akh akk akp akr aks ap- apa apc ape apg aph apk app apr aps ar- ara arc are arg arh ark arp arr ars as- asa asc ase asg ash ask asp asr ass c-- caa cac cae cag cah cak cap car cas cca ccc cce ccg cch cck ccp ccr ccs ce- cea cec cee ceg ceh cek cep cer ces cga cgc cge cgg cgh cgp cgr cgs ch- cha chc che chg chh chk chp chr chs cka ckc ckh cks cpa cpc cpe cpg cph cpk cpp cpr cps cra crc cre crg crh crk crp crr crs csa csc cse csg csh csk csp csr css eaa eac eae eag eah eak eap ear eas ec- eca ecc ece ecg ech eck ecr ecs eea eec eee eeg eek eep eer ees ega egc ege egg egh egp egr egs eha ehc ehe ehg ehh ehp ehr ehs eka ekc eke ekg ekh ekp ekr eks ep- epa epc epe epg eph epp epr eps era erc ere erg erh erk erp err ers es- esa esc ese esg esh esk esp esr ess g-p gaa gac gae gag gah gak gap gar gas gca gcc gce gcg gch gck gcp gcr gcs ge- gea gec gee geg geh gek gep ger ges gga ggc ggg ggh ggp ggr ggs gha ghc ghe ghg ghh ghp ghr ghs gka gkh gkp gks gpa gpc gpe gpg gph gpk gpp gpr gps gra grc gre grg grh grk grp grr grs gsa gsc gse gsg gsk gsp gsr gss haa hac hae hag hah hak hap har has hca hcc hce hcg hch hck hcp hcr hcs he- hea hec hee heg heh hek hep her hes hga hgc hge hgg hgh hgk hgp hgr hgs hha hhc hhe hhg hhh hhk hhp hhr hhs hka hkg hkh hkk hkp hkr hks hpa hpc hpe hpg hph hpk hpp hpr hps hr- hra hrc hre hrg hrh hrk hrp hrr hrs hsa hsc hse hsg hsh hsk hsp hsr hss ka- kaa kac kae kag kah kak kap kar kas kca kcc kce kcg kch kck kcp kcr kcs ke- kea kec kee keg keh kek kep ker kes kga kgc kgh kgp kgs kha khe khh khk khr khs kkc kke kkh kkk kkp kkr kks kpa kpc kpe kph kpk kpp kpr kps kra krc krg krk krp krr krs ksa ksc kse ksg ksh ksk ksp ksr kss p-p paa pac pae pag pah pak pap par pas pca pcc pce pcg pch pck pcp pcr pcs pea pec pee peg peh pek pep per pes pga pgc pge pgg pgh pgk pgp pgr pgs pha phc phe phg phk php phr phs pka pkc pke pkg pkp pkr pks ppa ppc ppe ppg pph ppk ppp ppr pps pra prc pre prg prh prk prp prr prs ps- psa psc pse psg psh psk psp psr pss ra- raa rac rae rag rah rak rap rar ras rca rcc rce rcg rch rcp rcr rcs re- rea rec ree reg reh rek rep rer res rga rgc rge rgg rgh rgk rgp rgr rgs rh- rha rhc rhe rhg rhh rhp rhr rhs rkc rke rkg rkk rkp rks rpa rpc rpe rpg rph rpk rpp rpr rps rra rrc rrg rrh rrk rrp rrr rrs rsa rsc rse rsg rsh rsk rsp rsr rss saa sac sae sag sah sak sap sar sas sca scc sce scg sch sck scp scr scs se- sea sec see seg seh sek sep ser ses sga sgc sge sgg sgh sgk sgp sgr sgs sh- sha shc she shg shh shk shp shr shs sk- ska skc ske skg skh skk skp skr sks spa spc spe spg sph spk spp spr sps sr- sra src sre srg srh srk srp srr srs ss- ssa ssc sse ssg ssh ssk ssp ssr sss