-er -ol b-u bbb bbd bbe bbi bbk bbl bbn bbo bbr bbs bbu bdb bdd bde bdi bdk bdl bdo bdr bds bdu be- beb bed bee bei bek bel ben beo ber bes beu bi- bib bid bie bii bik bil bin bio bir bis biu bkb bke bkk bkl bkn bko bkr bks blb bld ble bli blk bll bln blo blr bls blu bnb bnd bne bni bnk bnl bnn bno bnr bns bnu bob bod boe boi bok bol bon boo bor bos bou brb brd bre bri brk brl brn bro brr brs bru bsb bsd bse bsi bsk bsl bsn bso bsr bss bsu bub bud bue bui buk bul bun buo bur bus buu dbb dbd dbe dbi dbk dbl dbn dbo dbr dbs dbu ddb ddd dde ddi ddk ddl ddn ddo ddr dds ddu de- deb ded dee dei dek del den deo der des deu di- dib did die dii dik dil din dio dir dis diu dkb dke dki dkk dkl dko dkr dks dku dl- dlb dld dle dli dlk dll dlo dlr dls dlu dnb dnd dne dni dnk dnl dnn dno dnr dns dob dod doe doi dok dol don doo dor dos dou drb drd dre dri drk drl drn dro drr drs dru dsb dsd dse dsi dsk dsl dsn dso dsr dss dsu dub dud due dui duk dul dun duo dur dus ebb ebd ebe ebi ebk ebl ebn ebo ebr ebs ebu ed- edb edd ede edi edk edl edn edo edr eds edu eeb eed eee eek eel een eeo eer ees eib eid eie eii eik eil ein eio eir eis eiu ekb ekd eke eki ekl eko ekr eks eku elb eld ele eli elk ell eln elo elr els elu en- enb end ene eni enk enl enn eno enr ens enu eo- eob eod eoe eoi eok eol eon eoo eor eos eou erb erd ere eri erk erl ern ero err ers eru es- esb esd ese esi esk esl esn eso esr ess esu eu- eub eud eue eui eul eun eur eus i-d ibb ibd ibe ibi ibk ibl ibn ibo ibr ibs ibu idb idd ide idi idk idl idn ido idr ids idu ie- ied iee iei iek iel ien ier ies iib iid iie iii iil iin iio iir iis iiu ikb ike iki ikk ikl iko ikr iks iku il- ilb ild ile ili ilk ill iln ilo ilr ils ilu in- inb ind ine ini ink inl inn ino inr ins inu io- iob iod ioe ioi iol ion ioo ior ios iou ir- irb ird ire iri irk irl irn iro irr irs iru is- isb isd ise isi isk isl isn iso isr iss isu iu- iub iud iue iui iur ius kbb kbd kbe kbi kbk kbl kbn kbo kbr kbs kbu kdb kde kdk kdl kdo kdr kds kdu ke- keb ked kee kei kek kel ken keo ker kes kib kid kie kii kik kil kin kio kir kis kiu kkb kke kki kkk kkl kkn kkr kks kku kl- klb kld kli klo klr kls klu kn- knd kne kni knk knl knn kno knr knu kob kod koe koi kok kol kon koo kor kos kou krd kri krk krl krn kro krr krs kru ksb ksd kse ksi ksk ksl ksn kso ksr kss ksu kub kud kue kui kuk kul kun kur kus kuu lbb lbd lbe lbi lbk lbl lbo lbr lbs lbu ldb ldd lde ldi ldk ldl ldn ldo ldr lds ldu leb led lee lei lek lel len leo ler les leu lib lid lie lii lik lil lin lio lir lis liu lkb lkl lkr lks llb lld lle lli llk lll lln llo llr lls llu lnb lnd lne lni lnk lnl lnn lno lnr lns lnu lob lod loe loi lok lol lon loo lor los lou lrb lrd lri lrk lrn lro lrr lrs lru lsb lsd lse lsi lsk lsl lsn lso lsr lss lsu lub lud lue lui luk lul lun luo lur lus luu n-i nbb nbd nbe nbi nbk nbl nbn nbo nbr nbs nbu ndb ndd nde ndi ndk ndl ndn ndo ndr nds ndu ne- neb ned nee nei nek nel nen neo ner nes neu nib nid nie nii nik nil nin nio nir nis niu nke nki nkk nkn nko nkr nks nku nlb nld nle nli nlk nll nln nlo nlr nls nlu nnb nne nni nnk nnl nnn nno nns nnu no- nob nod noe noi nok nol non noo nor nos nou nrb nrd nre nri nrk nrl nrn nro nrr nrs nru nsb nsd nse nsi nsk nsl nsn nso nsr nss nsu nub nud nue nui nuk nul nun nuo nur nus nuu o-i ob- obb obd obe obi obk obl obn obo obr obs obu odb odd ode odi odl odn odo odr ods odu oeb oed oee oei oel oen oeo oer oes oib oid oie oii oik oil oin oio oir ois oiu okb okd oke oki okk okl oko okr oks oku olb old ole oli olk oll oln olo ols olu on- onb ond one oni onk onl onn ono onr ons onu oo- oob ood ooi ook ool oon ooo oor oos or- orb ord ore ori ork orl orn oro orr ors oru os- osb osd ose osi osk osl osn oso osr oss osu ou- oud oue oui ouk oul oun ouo our ous rbb rbd rbe rbi rbk rbl rbn rbo rbr rbs rbu rdb rdd rde rdi rdl rdn rdo rdr rds rdu re- reb red ree rei rek rel ren reo rer res reu rib rid rie rii rik ril rin rio rir ris rkb rke rkk rko rks rku rld rle rli rll rln rlo rlr rls rlu rnb rnd rni rnn rno rnr rns