-ol bbb bbd bbe bbi bbk bbl bbn bbo bdb bdd bde bdi bdk bdl bdo be- beb bed bee bei bek bel ben beo bi- bib bid bie bii bik bil bin bio bkb bke bkk bkl bkn bko blb bld ble bli blk bll bln blo bnb bnd bne bni bnk bnl bnn bno bob bod boe boi bok bol bon boo dbb dbd dbe dbi dbk dbl dbn dbo ddb ddd dde ddi ddk ddl ddn ddo de- deb ded dee dei dek del den deo di- dib did die dii dik dil din dio dkb dke dki dkk dkl dko dl- dlb dld dle dli dlk dll dlo dnb dnd dne dni dnk dnl dnn dno dob dod doe doi dok dol don doo ebb ebd ebe ebi ebk ebl ebn ebo ed- edb edd ede edi edk edl edn edo eeb eed eee eek eel een eeo eib eid eie eii eik eil ein eio ekb ekd eke eki ekl eko elb eld ele eli elk ell eln elo en- enb end ene eni enk enl enn eno eo- eob eod eoe eoi eok eol eon eoo i-d ibb ibd ibe ibi ibk ibl ibn ibo idb idd ide idi idk idl idn ido ie- ied iee iei iek iel ien iib iid iie iii iil iin iio ikb ike iki ikk ikl iko il- ilb ild ile ili ilk ill iln ilo in- inb ind ine ini ink inl inn ino io- iob iod ioe ioi iol ion ioo kbb kbd kbe kbi kbk kbl kbn kbo kdb kde kdk kdl kdo ke- keb ked kee kei kek kel ken keo kib kid kie kii kik kil kin kio kkb kke kki kkk kkl kkn kl- klb kld kli klo kn- knd kne kni knk knl knn kno kob kod koe koi kok kol kon koo lbb lbd lbe lbi lbk lbl lbo ldb ldd lde ldi ldk ldl ldn ldo leb led lee lei lek lel len leo lib lid lie lii lik lil lin lio lkb lkl llb lld lle lli llk lll lln llo lnb lnd lne lni lnk lnl lnn lno lob lod loe loi lok lol lon loo n-i nbb nbd nbe nbi nbk nbl nbn nbo ndb ndd nde ndi ndk ndl ndn ndo ne- neb ned nee nei nek nel nen neo nib nid nie nii nik nil nin nio nke nki nkk nkn nko nlb nld nle nli nlk nll nln nlo nnb nne nni nnk nnl nnn nno no- nob nod noe noi nok nol non noo o-i ob- obb obd obe obi obk obl obn obo odb odd ode odi odl odn odo oeb oed oee oei oel oen oeo oib oid oie oii oik oil oin oio okb okd oke oki okk okl oko olb old ole oli olk oll oln olo on- onb ond one oni onk onl onn ono oo- oob ood ooi ook ool oon ooo