-al a-a a-c aaa aac aag aal aas ac- aca acc acg acl acs ag- aga agc agg agl ags al- ala alc alg all als as- asa asc asg asl ass c-- caa cac cag cal cas cca ccc ccg ccl ccs cga cgc cgg cgl cgs cl- cla clc clg cll cls csa csc csg csl css gaa gac gag gal gas gca gcc gcg gcl gcs gga ggc ggg ggs gla glc glg gll gls gsa gsc gsg gsl gss la- laa lac lag lal las lca lcc lcg lcl lcs lga lgc lgg lgl lgs lla llc llg lll lls lsa lsc lsg lsl lss saa sac sag sal sas sca scc scg scl scs sga sgc sgg sgl sgs sla slc slg sll sls ss- ssa ssc ssg ssl sss