-al -ol a-a a-c aaa aac aak aal aao aas ac- aca acc ack acl aco acs aka akc akk akl ako aks al- ala alc alk all alo als aoa aoc aok aol aoo aos as- asa asc ask asl aso ass c-- caa cac cak cal cao cas cca ccc cck ccl cco ccs cka ckc cko cks cl- cla clc clk cll clo cls co- coa coc cok col coo cos csa csc csk csl cso css ka- kaa kac kak kal kao kas kca kcc kck kcl kcs kkc kkk kkl kks kl- kla klc klo kls koa koc kok kol koo kos ksa ksc ksk ksl kso kss la- laa lac lak lal lao las lca lcc lck lcl lco lcs lka lkl lks lla llc llk lll llo lls loa loc lok lol loo los lsa lsc lsk lsl lso lss oaa oac oak oal oao oas oc- oca occ ock ocl oco ocs oka okc okk okl oko oks ola olc olk oll olo ols oo- ooa ooc ook ool ooo oos os- osa osc osk osl oso oss saa sac sak sal sao sas sca scc sck scl sco scs sk- ska skc skk skl sko sks sla slc slk sll slo sls soa soc sok sol soo sos ss- ssa ssc ssk ssl sso sss