-al -ol a-a a-b a-c aaa aab aac aak aal aam aao ab- aba abb abc abk abl abm abo ac- aca acb acc ack acl acm aco aka akb akc akk akl akm ako al- ala alb alc alk all alm alo ama amb amc amk aml amm amo aoa aob aoc aok aol aom aoo baa bab bac bak bal bam bao bba bbb bbc bbk bbl bbm bbo bca bcb bcc bck bcl bcm bco bka bkb bkc bkk bkl bkm bko bla blb blc blk bll blm blo bma bmb bmc bmk bml bmm bmo boa bob boc bok bol bom boo c-- caa cab cac cak cal cam cao cba cbb cbc cbk cbl cbm cbo cca ccb ccc cck ccl ccm cco cka ckb ckc ckm cko cl- cla clb clc clk cll clm clo cma cmb cmc cmk cml cmm cmo co- coa cob coc cok col com coo ka- kaa kab kac kak kal kam kao kba kbb kbc kbk kbl kbm kbo kca kcb kcc kck kcl kcm kkb kkc kkk kkl kkm kl- kla klb klc klm klo kma kmb kmc kmk kml kmm kmo koa kob koc kok kol kom koo la- laa lab lac lak lal lam lao lba lbb lbc lbk lbl lbm lbo lca lcb lcc lck lcl lcm lco lka lkb lkl lla llb llc llk lll llm llo lma lmb lmc lmk lml lmm lmo loa lob loc lok lol lom loo m-o maa mab mac mak mal mam mao mba mbb mbc mbk mbl mbm mbo mc- mca mcb mcc mck mcl mcm mco mka mkb mkc mkk mkl mkm mko mla mlb mlc mlk mll mlm mlo mma mmb mmc mmk mml mmm mmo moa mob moc mok mol mom moo oaa oab oac oak oal oam oao ob- oba obb obc obk obl obm obo oc- oca ocb occ ock ocl ocm oco oka okb okc okk okl oko ola olb olc olk oll olm olo om- oma omb omc oml omm omo oo- ooa oob ooc ook ool oom ooo