-al -er -ic a-a a-c a-i aaa aac aae aag aai aal aar aas ac- aca acc ace acg aci acl acr acs aea aec aee aeg aei ael aer aes ag- aga agc age agg agi agl agr ags ai- aia aic aie aig aii ail air ais al- ala alc ale alg ali all alr als ar- ara arc are arg ari arl arr ars as- asa asc ase asg asi asl asr ass c-- caa cac cae cag cai cal car cas cca ccc cce ccg cci ccl ccr ccs ce- cea cec cee ceg cei cel cer ces cga cgc cge cgg cgi cgl cgr cgs ci- cia cic cie cig cii cil cir cis cl- cla clc cle clg cli cll clr cls cra crc cre crg cri crl crr crs csa csc cse csg csi csl csr css eaa eac eae eag eai eal ear eas ec- eca ecc ece ecg eci ecl ecr ecs eea eec eee eeg eel eer ees ega egc ege egg egi egl egr egs eia eic eie eig eii eil eir eis ela elc ele elg eli ell elr els era erc ere erg eri erl err ers es- esa esc ese esg esi esl esr ess gaa gac gae gag gai gal gar gas gca gcc gce gcg gci gcl gcr gcs ge- gea gec gee geg gei gel ger ges gga ggc ggg ggi ggr ggs gia gic gie gig gii gil gir gis gla glc gle glg gli gll glr gls gra grc gre grg gri grl grr grs gsa gsc gse gsg gsi gsl gsr gss ia- iaa iac iae iag iai ial iar ias ica icc ice icg ici icl icr ics ie- iea iec iee ieg iei iel ier ies iga igc ige igg igi igl igr igs iia iic iie iii iil iir iis il- ila ilc ile ilg ili ill ilr ils ir- ira irc ire irg iri irl irr irs is- isa isc ise isg isi isl isr iss la- laa lac lae lag lai lal lar las lca lcc lce lcg lci lcl lcr lcs lea lec lee leg lei lel ler les lga lgc lge lgg lgi lgl lgr lgs lia lic lie lig lii lil lir lis lla llc lle llg lli lll llr lls lra lrc lrg lri lrr lrs lsa lsc lse lsg lsi lsl lsr lss ra- raa rac rae rag rai ral rar ras rca rcc rce rcg rci rcl rcr rcs re- rea rec ree reg rei rel rer res rga rgc rge rgg rgi rgr rgs ria ric rie rig rii ril rir ris rla rlc rle rlg rli rll rlr rls rra rrc rrg rri rrl rrr rrs rsa rsc rse rsg rsi rsl rsr rss saa sac sae sag sai sal sar sas sca scc sce scg sci scl scr scs se- sea sec see seg sei sel ser ses sga sgc sge sgg sgi sgl sgr sgs sia sic sie sig sii sil sir sis sla slc sle slg sli sll slr sls sr- sra src sre srg sri srl srr srs ss- ssa ssc sse ssg ssi ssl ssr sss