-al -ol a-a a-c aaa aac aag aak aal aao aas ac- aca acc acg ack acl aco acs ag- aga agc agg agk agl ago ags aka akc akg akk akl ako aks al- ala alc alg alk all alo als aoa aoc aog aok aol aoo aos as- asa asc asg ask asl aso ass c-- caa cac cag cak cal cao cas cca ccc ccg cck ccl cco ccs cga cgc cgg cgl cgo cgs cka ckc cko cks cl- cla clc clg clk cll clo cls co- coa coc cog cok col coo cos csa csc csg csk csl cso css gaa gac gag gak gal gao gas gca gcc gcg gck gcl gco gcs gga ggc ggg ggo ggs gka gko gks gla glc glg glk gll glo gls goa goc gog gok gol goo gos gsa gsc gsg gsk gsl gso gss ka- kaa kac kag kak kal kao kas kca kcc kcg kck kcl kcs kga kgc kgl kgo kgs kkc kkk kkl kks kl- kla klc klg klo kls koa koc kog kok kol koo kos ksa ksc ksg ksk ksl kso kss la- laa lac lag lak lal lao las lca lcc lcg lck lcl lco lcs lga lgc lgg lgk lgl lgo lgs lka lkg lkl lks lla llc llg llk lll llo lls loa loc log lok lol loo los lsa lsc lsg lsk lsl lso lss oaa oac oag oak oal oao oas oc- oca occ ocg ock ocl oco ocs oga ogc ogg ogl ogo ogs oka okc okg okk okl oko oks ola olc olg olk oll olo ols oo- ooa ooc oog ook ool ooo oos os- osa osc osg osk osl oso oss saa sac sag sak sal sao sas sca scc scg sck scl sco scs sga sgc sgg sgk sgl sgo sgs sk- ska skc skg skk skl sko sks sla slc slg slk sll slo sls soa soc sog sok sol soo sos ss- ssa ssc ssg ssk ssl sso sss