-ol b-u bbb bbd bbe bbk bbl bbn bbo bbu bdb bdd bde bdk bdl bdo bdu be- beb bed bee bek bel ben beo beu bkb bke bkk bkl bkn bko blb bld ble blk bll bln blo blu bnb bnd bne bnk bnl bnn bno bnu bob bod boe bok bol bon boo bou bub bud bue buk bul bun buo buu dbb dbd dbe dbk dbl dbn dbo dbu ddb ddd dde ddk ddl ddn ddo ddu de- deb ded dee dek del den deo deu dkb dke dkk dkl dko dku dl- dlb dld dle dlk dll dlo dlu dnb dnd dne dnk dnl dnn dno dob dod doe dok dol don doo dou dub dud due duk dul dun duo ebb ebd ebe ebk ebl ebn ebo ebu ed- edb edd ede edk edl edn edo edu eeb eed eee eek eel een eeo ekb ekd eke ekl eko eku elb eld ele elk ell eln elo elu en- enb end ene enk enl enn eno enu eo- eob eod eoe eok eol eon eoo eou eu- eub eud eue eul eun kbb kbd kbe kbk kbl kbn kbo kbu kdb kde kdk kdl kdo kdu ke- keb ked kee kek kel ken keo kkb kke kkk kkl kkn kku kl- klb kld klo klu kn- knd kne knk knl knn kno knu kob kod koe kok kol kon koo kou kub kud kue kuk kul kun kuu lbb lbd lbe lbk lbl lbo lbu ldb ldd lde ldk ldl ldn ldo ldu leb led lee lek lel len leo leu lkb lkl llb lld lle llk lll lln llo llu lnb lnd lne lnk lnl lnn lno lnu lob lod loe lok lol lon loo lou lub lud lue luk lul lun luo luu nbb nbd nbe nbk nbl nbn nbo nbu ndb ndd nde ndk ndl ndn ndo ndu ne- neb ned nee nek nel nen neo neu nke nkk nkn nko nku nlb nld nle nlk nll nln nlo nlu nnb nne nnk nnl nnn nno nnu no- nob nod noe nok nol non noo nou nub nud nue nuk nul nun nuo nuu ob- obb obd obe obk obl obn obo obu odb odd ode odl odn odo odu oeb oed oee oel oen oeo okb okd oke okk okl oko oku olb old ole olk oll oln olo olu on- onb ond one onk onl onn ono onu oo- oob ood ook ool oon ooo ou- oud oue ouk oul oun ouo ubb ube ubk ubl ubn ubo ubu udb udd ude udk udl udn udo udu ueb ued uee uel uen ukb uke ukk ukl ukn uku ulb uld ule ulk ull uln ulo ulu un- unb und une unk unl unn uno unu uob uod uoe uok uol uon uoo uue uun uuu