-ic -ol b-u bbb bbc bbi bbk bbl bbo bbu bcb bcc bci bck bcl bco bcu bi- bib bic bii bik bil bio biu bkb bkc bkk bkl bko blb blc bli blk bll blo blu bob boc boi bok bol boo bou bub buc bui buk bul buo buu c-- cbb cbc cbi cbk cbl cbo cbu ccb ccc cci cck ccl cco ccu ci- cib cic cii cik cil cio ciu ckb ckc cki cko cl- clb clc cli clk cll clo clu co- cob coc coi cok col coo cou cub cuc cui cuk cul cuo cuu ibb ibc ibi ibk ibl ibo ibu icb icc ici ick icl ico icu iib iic iii iil iio iiu ikb ikc iki ikk ikl iko iku il- ilb ilc ili ilk ill ilo ilu io- iob ioc ioi iol ioo iou iu- iub iuc iui kbb kbc kbi kbk kbl kbo kbu kcb kcc kci kck kcl kcu kib kic kii kik kil kio kiu kkb kkc kki kkk kkl kku kl- klb klc kli klo klu kob koc koi kok kol koo kou kub kuc kui kuk kul kuu lbb lbc lbi lbk lbl lbo lbu lcb lcc lci lck lcl lco lcu lib lic lii lik lil lio liu lkb lkl llb llc lli llk lll llo llu lob loc loi lok lol loo lou lub luc lui luk lul luo luu o-i ob- obb obc obi obk obl obo obu oc- ocb occ oci ock ocl oco ocu oib oic oii oik oil oio oiu okb okc oki okk okl oko oku olb olc oli olk oll olo olu oo- oob ooc ooi ook ool ooo ou- ouc oui ouk oul ouo ubb ubc ubi ubk ubl ubo ubu ucb ucc uci uck ucl uco ucu uib uic uii uil uio uiu ukb ukc uki ukk ukl uku ulb ulc uli ulk ull ulo ulu uob uoc uok uol uoo uuc uuu