-ol bbb bbd bbi bbk bbl bbo bdb bdd bdi bdk bdl bdo bi- bib bid bii bik bil bio bkb bkk bkl bko blb bld bli blk bll blo bob bod boi bok bol boo dbb dbd dbi dbk dbl dbo ddb ddd ddi ddk ddl ddo di- dib did dii dik dil dio dkb dki dkk dkl dko dl- dlb dld dli dlk dll dlo dob dod doi dok dol doo i-d ibb ibd ibi ibk ibl ibo idb idd idi idk idl ido iib iid iii iil iio ikb iki ikk ikl iko il- ilb ild ili ilk ill ilo io- iob iod ioi iol ioo kbb kbd kbi kbk kbl kbo kdb kdk kdl kdo kib kid kii kik kil kio kkb kki kkk kkl kl- klb kld kli klo kob kod koi kok kol koo lbb lbd lbi lbk lbl lbo ldb ldd ldi ldk ldl ldo lib lid lii lik lil lio lkb lkl llb lld lli llk lll llo lob lod loi lok lol loo o-i ob- obb obd obi obk obl obo odb odd odi odl odo oib oid oii oik oil oio okb okd oki okk okl oko olb old oli olk oll olo oo- oob ood ooi ook ool ooo