-ol bbb bbi bbk bbl bbm bbo bi- bib bii bik bil bim bio bkb bkk bkl bkm bko blb bli blk bll blm blo bmb bmi bmk bml bmm bmo bob boi bok bol bom boo ibb ibi ibk ibl ibm ibo iib iii iil iim iio ikb iki ikk ikl iko il- ilb ili ilk ill ilm ilo im- imb imi iml imm imo io- iob ioi iol iom ioo kbb kbi kbk kbl kbm kbo kib kii kik kil kim kio kkb kki kkk kkl kkm kl- klb kli klm klo kmb kmi kmk kml kmm kmo kob koi kok kol kom koo lbb lbi lbk lbl lbm lbo lib lii lik lil lim lio lkb lkl llb lli llk lll llm llo lmb lmi lmk lml lmm lmo lob loi lok lol lom loo m-o mbb mbi mbk mbl mbm mbo mi- mib mii mik mil mim mio mkb mkk mkl mkm mko mlb mli mlk mll mlm mlo mmb mmi mmk mml mmm mmo mob moi mok mol mom moo o-i ob- obb obi obk obl obm obo oib oii oik oil oim oio okb oki okk okl oko olb oli olk oll olm olo om- omb omi oml omm omo oo- oob ooi ook ool oom ooo