-ic -ol b-u bbb bbc bbi bbl bbo bbu bcb bcc bci bcl bco bcu bi- bib bic bii bil bio biu blb blc bli bll blo blu bob boc boi bol boo bou bub buc bui bul buo buu c-- cbb cbc cbi cbl cbo cbu ccb ccc cci ccl cco ccu ci- cib cic cii cil cio ciu cl- clb clc cli cll clo clu co- cob coc coi col coo cou cub cuc cui cul cuo cuu ibb ibc ibi ibl ibo ibu icb icc ici icl ico icu iib iic iii iil iio iiu il- ilb ilc ili ill ilo ilu io- iob ioc ioi iol ioo iou iu- iub iuc iui lbb lbc lbi lbl lbo lbu lcb lcc lci lcl lco lcu lib lic lii lil lio liu llb llc lli lll llo llu lob loc loi lol loo lou lub luc lui lul luo luu o-i ob- obb obc obi obl obo obu oc- ocb occ oci ocl oco ocu oib oic oii oil oio oiu olb olc oli oll olo olu oo- oob ooc ooi ool ooo ou- ouc oui oul ouo ubb ubc ubi ubl ubo ubu ucb ucc uci ucl uco ucu uib uic uii uil uio uiu ulb ulc uli ull ulo ulu uob uoc uol uoo uuc uuu