-al a-a a-c aaa aac aae aag aal aan aas ac- aca acc ace acg acl acn acs aea aec aee aeg ael aen aes ag- aga agc age agg agl agn ags al- ala alc ale alg all aln als an- ana anc ane ang anl ann ans as- asa asc ase asg asl asn ass c-- caa cac cae cag cal can cas cca ccc cce ccg ccl ccn ccs ce- cea cec cee ceg cel cen ces cga cgc cge cgg cgl cgn cgs cl- cla clc cle clg cll cln cls cn- cna cnc cne cng cnl cnn cns csa csc cse csg csl csn css eaa eac eae eag eal ean eas ec- eca ecc ece ecg ecl ecn ecs eea eec eee eeg eel een ees ega egc ege egg egl egn egs ela elc ele elg ell eln els en- ena enc ene eng enl enn ens es- esa esc ese esg esl esn ess gaa gac gae gag gal gan gas gca gcc gce gcg gcl gcn gcs ge- gea gec gee geg gel gen ges gga ggc ggg ggn ggs gla glc gle glg gll gln gls gna gnc gne gnl gnn gns gsa gsc gse gsg gsl gsn gss la- laa lac lae lag lal lan las lca lcc lce lcg lcl lcn lcs lea lec lee leg lel len les lga lgc lge lgg lgl lgn lgs lla llc lle llg lll lln lls lna lnc lne lng lnl lnn lns lsa lsc lse lsg lsl lsn lss naa nac nae nag nal nan nas nca ncc nce ncg ncl ncn ncs ne- nea nec nee neg nel nen nes nga ngc nge ngg ngl ngn ngs nla nlc nle nlg nll nln nls nna nnc nne nng nnl nnn nns nsa nsc nse nsg nsl nsn nss saa sac sae sag sal san sas sca scc sce scg scl scn scs se- sea sec see seg sel sen ses sga sgc sge sgg sgl sgn sgs sla slc sle slg sll sln sls sna snc sne sng snl snn sns ss- ssa ssc sse ssg ssl ssn sss