-al -ol a-a a-c aaa aac aag aak aal aan aao aas ac- aca acc acg ack acl acn aco acs ag- aga agc agg agk agl agn ago ags aka akc akg akk akl akn ako aks al- ala alc alg alk all aln alo als an- ana anc ang ank anl ann ano ans aoa aoc aog aok aol aon aoo aos as- asa asc asg ask asl asn aso ass c-- caa cac cag cak cal can cao cas cca ccc ccg cck ccl ccn cco ccs cga cgc cgg cgl cgn cgo cgs cka ckc cko cks cl- cla clc clg clk cll cln clo cls cn- cna cnc cng cnl cnn cno cns co- coa coc cog cok col con coo cos csa csc csg csk csl csn cso css gaa gac gag gak gal gan gao gas gca gcc gcg gck gcl gcn gco gcs gga ggc ggg ggn ggo ggs gka gkn gko gks gla glc glg glk gll gln glo gls gna gnc gnl gnn gno gns goa goc gog gok gol gon goo gos gsa gsc gsg gsk gsl gsn gso gss ka- kaa kac kag kak kal kan kao kas kca kcc kcg kck kcl kcn kcs kga kgc kgl kgo kgs kkc kkk kkl kkn kks kl- kla klc klg klo kls kn- kna knc kng knk knl knn kno koa koc kog kok kol kon koo kos ksa ksc ksg ksk ksl ksn kso kss la- laa lac lag lak lal lan lao las lca lcc lcg lck lcl lcn lco lcs lga lgc lgg lgk lgl lgn lgo lgs lka lkg lkl lks lla llc llg llk lll lln llo lls lna lnc lng lnk lnl lnn lno lns loa loc log lok lol lon loo los lsa lsc lsg lsk lsl lsn lso lss naa nac nag nak nal nan nao nas nca ncc ncg nck ncl ncn nco ncs nga ngc ngg ngk ngl ngn ngo ngs nka nkc nkk nkn nko nks nla nlc nlg nlk nll nln nlo nls nna nnc nng nnk nnl nnn nno nns no- noa noc nog nok nol non noo nos nsa nsc nsg nsk nsl nsn nso nss oaa oac oag oak oal oan oao oas oc- oca occ ocg ock ocl ocn oco ocs oga ogc ogg ogl ogn ogo ogs oka okc okg okk okl oko oks ola olc olg olk oll oln olo ols on- ona onc ong onk onl onn ono ons oo- ooa ooc oog ook ool oon ooo oos os- osa osc osg osk osl osn oso oss saa sac sag sak sal san sao sas sca scc scg sck scl scn sco scs sga sgc sgg sgk sgl sgn sgo sgs sk- ska skc skg skk skl sko sks sla slc slg slk sll sln slo sls sna snc sng snk snl snn sno sns soa soc sog sok sol son soo sos ss- ssa ssc ssg ssk ssl ssn sso sss