-al -ol a-a a-c aaa aac aad aak aal aao ac- aca acc acd ack acl aco ad- ada adc add adk adl ado aka akc akd akk akl ako al- ala alc ald alk all alo aoa aoc aod aok aol aoo c-- caa cac cad cak cal cao cca ccc ccd cck ccl cco cda cdc cdd cdk cdl cdo cka ckc ckd cko cl- cla clc cld clk cll clo co- coa coc cod cok col coo daa dac dad dak dal dao dca dcc dcd dck dcl dco dda ddc ddd ddk ddl ddo dka dkc dkk dkl dko dl- dla dlc dld dlk dll dlo doa doc dod dok dol doo ka- kaa kac kad kak kal kao kca kcc kcd kck kcl kda kdc kdk kdl kdo kkc kkk kkl kl- kla klc kld klo koa koc kod kok kol koo la- laa lac lad lak lal lao lca lcc lcd lck lcl lco lda ldc ldd ldk ldl ldo lka lkl lla llc lld llk lll llo loa loc lod lok lol loo oaa oac oad oak oal oao oc- oca occ ocd ock ocl oco oda odc odd odl odo oka okc okd okk okl oko ola olc old olk oll olo oo- ooa ooc ood ook ool ooo