-al -ic -ol a-a a-b a-c a-i aaa aab aac aai aak aal aao ab- aba abb abc abi abk abl abo ac- aca acb acc aci ack acl aco ai- aia aib aic aii aik ail aio aka akb akc aki akk akl ako al- ala alb alc ali alk all alo aoa aob aoc aoi aok aol aoo baa bab bac bai bak bal bao bba bbb bbc bbi bbk bbl bbo bca bcb bcc bci bck bcl bco bi- bia bib bic bii bik bil bio bka bkb bkc bkk bkl bko bla blb blc bli blk bll blo boa bob boc boi bok bol boo c-- caa cab cac cai cak cal cao cba cbb cbc cbi cbk cbl cbo cca ccb ccc cci cck ccl cco ci- cia cib cic cii cik cil cio cka ckb ckc cki cko cl- cla clb clc cli clk cll clo co- coa cob coc coi cok col coo ia- iaa iab iac iai ial iao iba ibb ibc ibi ibk ibl ibo ica icb icc ici ick icl ico iia iib iic iii iil iio ika ikb ikc iki ikk ikl iko il- ila ilb ilc ili ilk ill ilo io- ioa iob ioc ioi iol ioo ka- kaa kab kac kai kak kal kao kba kbb kbc kbi kbk kbl kbo kca kcb kcc kci kck kcl kia kib kic kii kik kil kio kkb kkc kki kkk kkl kl- kla klb klc kli klo koa kob koc koi kok kol koo la- laa lab lac lai lak lal lao lba lbb lbc lbi lbk lbl lbo lca lcb lcc lci lck lcl lco lia lib lic lii lik lil lio lka lkb lkl lla llb llc lli llk lll llo loa lob loc loi lok lol loo o-i oaa oab oac oai oak oal oao ob- oba obb obc obi obk obl obo oc- oca ocb occ oci ock ocl oco oia oib oic oii oik oil oio oka okb okc oki okk okl oko ola olb olc oli olk oll olo oo- ooa oob ooc ooi ook ool ooo