-ol bbb bbi bbk bbl bbn bbo bbt bi- bib bii bik bil bin bio bit bkb bkk bkl bkn bko bkt blb bli blk bll bln blo blt bnb bni bnk bnl bnn bno bnt bob boi bok bol bon boo bot btb bti btk btl btn bto btt ibb ibi ibk ibl ibn ibo ibt iib iii iil iin iio iit ikb iki ikk ikl iko ikt il- ilb ili ilk ill iln ilo ilt in- inb ini ink inl inn ino int io- iob ioi iol ion ioo iot itb iti itk itl itn ito itt k-t kbb kbi kbk kbl kbn kbo kib kii kik kil kin kio kit kkb kki kkk kkl kkn kkt kl- klb kli klo klt kn- kni knk knl knn kno knt kob koi kok kol kon koo kot ktb ktk ktl ktn kto ktt lbb lbi lbk lbl lbo lbt lib lii lik lil lin lio lit lkb lkl lkt llb lli llk lll lln llo llt lnb lni lnk lnl lnn lno lnt lob loi lok lol lon loo lot ltb lti ltk ltl lto ltt n-i nbb nbi nbk nbl nbn nbo nbt nib nii nik nil nin nio nit nki nkk nkn nko nkt nlb nli nlk nll nln nlo nlt nnb nni nnk nnl nnn nno nnt no- nob noi nok nol non noo not ntb nti ntk ntn nto ntt o-i ob- obb obi obk obl obn obo obt oib oii oik oil oin oio oit okb oki okk okl oko olb oli olk oll oln olo olt on- onb oni onk onl onn ono ont oo- oob ooi ook ool oon ooo oot ot- otb oti otk otl otn oto ott tbb tbi tbk tbl tbn tbo tbt tib tii tik til tin tio tit tkb tkk tkl tko tkt tli tlk tll tln tlo tlt tnb tni tnk tnl tnn tno tnt to- tob toi tok tol ton too tot ttb tti ttk ttl ttn tto ttt