-ol b-u bbb bbe bbi bbk bbl bbn bbo bbu be- beb bee bei bek bel ben beo beu bi- bib bie bii bik bil bin bio biu bkb bke bkk bkl bkn bko blb ble bli blk bll bln blo blu bnb bne bni bnk bnl bnn bno bnu bob boe boi bok bol bon boo bou bub bue bui buk bul bun buo buu ebb ebe ebi ebk ebl ebn ebo ebu eeb eee eek eel een eeo eib eie eii eik eil ein eio eiu ekb eke eki ekl eko eku elb ele eli elk ell eln elo elu en- enb ene eni enk enl enn eno enu eo- eob eoe eoi eok eol eon eoo eou eu- eub eue eui eul eun ibb ibe ibi ibk ibl ibn ibo ibu ie- iee iei iek iel ien iib iie iii iil iin iio iiu ikb ike iki ikk ikl iko iku il- ilb ile ili ilk ill iln ilo ilu in- inb ine ini ink inl inn ino inu io- iob ioe ioi iol ion ioo iou iu- iub iue iui kbb kbe kbi kbk kbl kbn kbo kbu ke- keb kee kei kek kel ken keo kib kie kii kik kil kin kio kiu kkb kke kki kkk kkl kkn kku kl- klb kli klo klu kn- kne kni knk knl knn kno knu kob koe koi kok kol kon koo kou kub kue kui kuk kul kun kuu lbb lbe lbi lbk lbl lbo lbu leb lee lei lek lel len leo leu lib lie lii lik lil lin lio liu lkb lkl llb lle lli llk lll lln llo llu lnb lne lni lnk lnl lnn lno lnu lob loe loi lok lol lon loo lou lub lue lui luk lul lun luo luu n-i nbb nbe nbi nbk nbl nbn nbo nbu ne- neb nee nei nek nel nen neo neu nib nie nii nik nil nin nio niu nke nki nkk nkn nko nku nlb nle nli nlk nll nln nlo nlu nnb nne nni nnk nnl nnn nno nnu no- nob noe noi nok nol non noo nou nub nue nui nuk nul nun nuo nuu o-i ob- obb obe obi obk obl obn obo obu oeb oee oei oel oen oeo oib oie oii oik oil oin oio oiu okb oke oki okk okl oko oku olb ole oli olk oll oln olo olu on- onb one oni onk onl onn ono onu oo- oob ooi ook ool oon ooo ou- oue oui ouk oul oun ouo ubb ube ubi ubk ubl ubn ubo ubu ueb uee uei uel uen uib uie uii uil uin uio uiu ukb uke uki ukk ukl ukn uku ulb ule uli ulk ull uln ulo ulu un- unb une uni unk unl unn uno unu uob uoe uok uol uon uoo uue uun uuu