-ol bbb bbi bbk bbl bbn bbo bbt bi- bib bii bik bil bin bio bit biv bkb bkk bkl bkn bko bkt bkv blb bli blk bll bln blo blt blv bnb bni bnk bnl bnn bno bnt bnv bob boi bok bol bon boo bot bov btb bti btk btl btn bto btt btv bvb bvi bvk bvl bvn bvo bvt bvv i-v ibb ibi ibk ibl ibn ibo ibt ibv iib iii iil iin iio iit ikb iki ikk ikl iko ikt ikv il- ilb ili ilk ill iln ilo ilt ilv in- inb ini ink inl inn ino int inv io- iob ioi iol ion ioo iot iov itb iti itk itl itn ito itt itv ivb ivi ivl ivo ivt ivv k-t kbb kbi kbk kbl kbn kbo kib kii kik kil kin kio kit kiv kkb kki kkk kkl kkn kkt kkv kl- klb kli klo klt klv kn- kni knk knl knn kno knt kob koi kok kol kon koo kot ktb ktk ktl ktn kto ktt ktv kvb kvi kvk kvn kvo kvv lbb lbi lbk lbl lbo lbt lbv lib lii lik lil lin lio lit liv lkb lkl lkt llb lli llk lll lln llo llt llv lnb lni lnk lnl lnn lno lnt lob loi lok lol lon loo lot lov ltb lti ltk ltl lto ltt ltv lvb lvi lvl lvn lvt lvv n-i nbb nbi nbk nbl nbn nbo nbt nbv nib nii nik nil nin nio nit niv nki nkk nkn nko nkt nlb nli nlk nll nln nlo nlt nlv nnb nni nnk nnl nnn nno nnt nnv no- nob noi nok nol non noo not nov ntb nti ntk ntn nto ntt ntv nvb nvi nvk nvl nvn nvt nvv o-i ob- obb obi obk obl obn obo obt obv oib oii oik oil oin oio oit oiv 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 oov ot- otb oti otk otl otn oto ott otv ov- ovb ovi ovl ovo ovv tbb tbi tbk tbl tbn tbo tbt tbv tib tii tik til tin tio tit tiv tkb tkk tkl tko tkt tli tlk tll tln tlo tlt tlv tnb tni tnk tnl tnn tno tnt to- tob toi tok tol ton too tot tov ttb tti ttk ttl ttn tto ttt ttv tvb tvi tvk tvl tvn tvo tvt vbi vbk vbl vbo vbv vi- vib vii vik vil vin vio vit viv vkb vkt vl- vlb vlk vll vlo vlt vlv vn- vni vnl vno vnv vob voi vok vol von voo vot vov vtb vti vtk vtl vto vtt vtv vvb vvi vvo vvt vvv