-al -er a-a a-c aaa aac aae aag aak aal aar aas aau ac- aca acc ace acg ack acl acr acs acu aea aec aee aeg aek ael aer aes aeu ag- aga agc age agg agk agl agr ags agu aka akc ake akg akk akl akr aks aku al- ala alc ale alg alk all alr als alu ar- ara arc are arg ark arl arr ars aru as- asa asc ase asg ask asl asr ass asu au- aua auc aue aug auk aul aur aus c-- caa cac cae cag cak cal car cas cau cca ccc cce ccg cck ccl ccr ccs ccu ce- cea cec cee ceg cek cel cer ces ceu cga cgc cge cgg cgl cgr cgs cgu cka ckc cks cl- cla clc cle clg clk cll clr cls clu cra crc cre crg crk crl crr crs cru csa csc cse csg csk csl csr css csu cua cuc cue cug cuk cul cur cus cuu eaa eac eae eag eak eal ear eas eau ec- eca ecc ece ecg eck ecl ecr ecs ecu eea eec eee eeg eek eel eer ees ega egc ege egg egl egr egs egu eka ekc eke ekg ekl ekr eks eku ela elc ele elg elk ell elr els elu era erc ere erg erk erl err ers eru es- esa esc ese esg esk esl esr ess esu eu- eua euc eue eug eul eur eus gaa gac gae gag gak gal gar gas gau gca gcc gce gcg gck gcl gcr gcs gcu ge- gea gec gee geg gek gel ger ges geu gga ggc ggg ggr ggs ggu gka gks gla glc gle glg glk gll glr gls glu gra grc gre grg grk grl grr grs gru gsa gsc gse gsg gsk gsl gsr gss gsu gu- gua guc gue gug guk gul gur gus guu ka- kaa kac kae kag kak kal kar kas kau kca kcc kce kcg kck kcl kcr kcs kcu ke- kea kec kee keg kek kel ker kes kga kgc kgl kgs kgu kkc kke kkk kkl kkr kks kku kl- kla klc klg klr kls klu kra krc krg krk krl krr krs kru ksa ksc kse ksg ksk ksl ksr kss ksu kuc kue kug kuk kul kur kus kuu la- laa lac lae lag lak lal lar las lau lca lcc lce lcg lck lcl lcr lcs lcu lea lec lee leg lek lel ler les leu lga lgc lge lgg lgk lgl lgr lgs lgu lka lkg lkl lkr lks lla llc lle llg llk lll llr lls llu lra lrc lrg lrk lrr lrs lru lsa lsc lse lsg lsk lsl lsr lss lsu lua luc lue lug luk lul lur lus luu ra- raa rac rae rag rak ral rar ras rau rca rcc rce rcg rcl rcr rcs rcu re- rea rec ree reg rek rel rer res reu rga rgc rge rgg rgk rgr rgs rkc rke rkg rkk rks rku rla rlc rle rlg rll rlr rls rlu rra rrc rrg rrk rrl rrr rrs rru rsa rsc rse rsg rsk rsl rsr rss rsu rua ruc rue rug ruk rur rus ruu saa sac sae sag sak sal sar sas sau sca scc sce scg sck scl scr scs scu se- sea sec see seg sek sel ser ses seu sga sgc sge sgg sgk sgl sgr sgs sgu sk- ska skc ske skg skk skl skr sks sku sla slc sle slg slk sll slr sls slu sr- sra src sre srg srk srl srr srs ss- ssa ssc sse ssg ssk ssl ssr sss ssu sua suc sue sug suk sul sur sus suu ua- uaa uac uae uag uak ual uar uas uau uca ucc uce ucg uck ucl ucr ucs ucu uea uec uee ueg uel uer ues uga ugc uge ugg ugk ugl ugr ugs ugu uka ukc uke ukk ukl ukr uku ula ulc ule ulg ulk ull ulr uls ulu ur- ura urc ure urg urk url urr urs uru usa usc use usg usk usl usr uss usu uua uuc uue uug uur uus uuu