-al a-a a-c aaa aac aae aag aal aam aas ac- aca acc ace acg acl acm acs aea aec aee aeg ael aem aes ag- aga agc age agg agl agm ags al- ala alc ale alg all alm als ama amc ame amg aml amm ams as- asa asc ase asg asl asm ass c-- caa cac cae cag cal cam cas cca ccc cce ccg ccl ccm ccs ce- cea cec cee ceg cel cem ces cga cgc cge cgg cgl cgm cgs cl- cla clc cle clg cll clm cls cma cmc cme cmg cml cmm cms csa csc cse csg csl csm css eaa eac eae eag eal eam eas ec- eca ecc ece ecg ecl ecm ecs eea eec eee eeg eel eem ees ega egc ege egg egl egm egs ela elc ele elg ell elm els em- ema emc eme emg eml emm ems es- esa esc ese esg esl esm ess gaa gac gae gag gal gam gas gca gcc gce gcg gcl gcm gcs ge- gea gec gee geg gel gem ges gga ggc ggg ggm ggs gla glc gle glg gll glm gls gma gmc gme gmg gml gmm gms gsa gsc gse gsg gsl gsm gss la- laa lac lae lag lal lam las lca lcc lce lcg lcl lcm lcs lea lec lee leg lel lem les lga lgc lge lgg lgl lgm lgs lla llc lle llg lll llm lls lma lmc lme lmg lml lmm lms lsa lsc lse lsg lsl lsm lss maa mac mae mag mal mam mas mc- mca mcc mce mcg mcl mcm mcs mea mec mee meg mel mem mes mga mgc mge mgl mgm mgs mla mlc mle mlg mll mlm mls mma mmc mme mmg mml mmm mms msa msc mse msg msl msm mss saa sac sae sag sal sam sas sca scc sce scg scl scm scs se- sea sec see seg sel sem ses sga sgc sge sgg sgl sgm sgs sla slc sle slg sll slm sls sma smc sme smg sml smm sms ss- ssa ssc sse ssg ssl ssm sss