-al -er a-a a-c aaa aac aae aag aal aar aas aau ac- aca acc ace acg acl acr acs acu aea aec aee aeg ael aer aes aeu ag- aga agc age agg agl agr ags agu al- ala alc ale alg all alr als alu ar- ara arc are arg arl arr ars aru as- asa asc ase asg asl asr ass asu au- aua auc aue aug aul aur aus c-- caa cac cae cag cal car cas cau cca ccc cce ccg ccl ccr ccs ccu ce- cea cec cee ceg cel cer ces ceu cga cgc cge cgg cgl cgr cgs cgu cl- cla clc cle clg cll clr cls clu cra crc cre crg crl crr crs cru csa csc cse csg csl csr css csu cua cuc cue cug cul cur cus cuu eaa eac eae eag eal ear eas eau ec- eca ecc ece ecg ecl ecr ecs ecu eea eec eee eeg eel eer ees ega egc ege egg egl egr egs egu ela elc ele elg ell elr els elu era erc ere erg erl err ers eru es- esa esc ese esg esl esr ess esu eu- eua euc eue eug eul eur eus gaa gac gae gag gal gar gas gau gca gcc gce gcg gcl gcr gcs gcu ge- gea gec gee geg gel ger ges geu gga ggc ggg ggr ggs ggu gla glc gle glg gll glr gls glu gra grc gre grg grl grr grs gru gsa gsc gse gsg gsl gsr gss gsu gu- gua guc gue gug gul gur gus guu la- laa lac lae lag lal lar las lau lca lcc lce lcg lcl lcr lcs lcu lea lec lee leg lel ler les leu lga lgc lge lgg lgl lgr lgs lgu lla llc lle llg lll llr lls llu lra lrc lrg lrr lrs lru lsa lsc lse lsg lsl lsr lss lsu lua luc lue lug lul lur lus luu ra- raa rac rae rag ral rar ras rau rca rcc rce rcg rcl rcr rcs rcu re- rea rec ree reg rel rer res reu rga rgc rge rgg rgr rgs rla rlc rle rlg rll rlr rls rlu rra rrc rrg rrl rrr rrs rru rsa rsc rse rsg rsl rsr rss rsu rua ruc rue rug rur rus ruu saa sac sae sag sal sar sas sau sca scc sce scg scl scr scs scu se- sea sec see seg sel ser ses seu sga sgc sge sgg sgl sgr sgs sgu sla slc sle slg sll slr sls slu sr- sra src sre srg srl srr srs ss- ssa ssc sse ssg ssl ssr sss ssu sua suc sue sug sul sur sus suu ua- uaa uac uae uag ual uar uas uau uca ucc uce ucg ucl ucr ucs ucu uea uec uee ueg uel uer ues uga ugc uge ugg ugl ugr ugs ugu ula ulc ule ulg ull ulr uls ulu ur- ura urc ure urg url urr urs uru usa usc use usg usl usr uss usu uua uuc uue uug uur uus uuu