-er -ol b-u bbb bbd bbe bbi bbk bbl bbm bbo bbr bbs bbu bdb bdd bde bdi bdk bdl bdm bdo bdr bds bdu be- beb bed bee bei bek bel bem beo ber bes beu bi- bib bid bie bii bik bil bim bio bir bis biu bkb bke bkk bkl bkm bko bkr bks blb bld ble bli blk bll blm blo blr bls blu bmb bmd bme bmi bmk bml bmm bmo bmr bms bmu bob bod boe boi bok bol bom boo bor bos bou brb brd bre bri brk brl brm bro brr brs bru bsb bsd bse bsi bsk bsl bsm bso bsr bss bsu bub bud bue bui buk bul bum buo bur bus buu dbb dbd dbe dbi dbk dbl dbm dbo dbr dbs dbu ddb ddd dde ddi ddk ddl ddm ddo ddr dds ddu de- deb ded dee dei dek del dem deo der des deu di- dib did die dii dik dil dim dio dir dis diu dkb dke dki dkk dkl dkm dko dkr dks dku dl- dlb dld dle dli dlk dll dlm dlo dlr dls dlu dmb dmd dme dmi dmk dml dmm dmo dmr dms dmu dob dod doe doi dok dol dom doo dor dos dou drb drd dre dri drk drl drm dro drr drs dru dsb dsd dse dsi dsk dsl dsm dso dsr dss dsu dub dud due dui duk dul dum duo dur dus ebb ebd ebe ebi ebk ebl ebm ebo ebr ebs ebu ed- edb edd ede edi edk edl edm edo edr eds edu eeb eed eee eek eel eem eeo eer ees eib eid eie eii eik eil eim eio eir eis eiu ekb ekd eke eki ekl eko ekr eks eku elb eld ele eli elk ell elm elo elr els elu em- emb emd eme emi emk eml emm emo emr ems emu eo- eob eod eoe eoi eok eol eom eoo eor eos eou erb erd ere eri erk erl erm ero err ers eru es- esb esd ese esi esk esl esm eso esr ess esu eu- eub eud eue eui eul eur eus i-d ibb ibd ibe ibi ibk ibl ibm ibo ibr ibs ibu idb idd ide idi idk idl idm ido idr ids idu ie- ied iee iei iek iel iem ier ies iib iid iie iii iil iim iio iir iis iiu ikb ike iki ikk ikl iko ikr iks iku il- ilb ild ile ili ilk ill ilm ilo ilr ils ilu im- imb imd ime imi iml imm imo ims imu io- iob iod ioe ioi iol iom ioo ior ios iou ir- irb ird ire iri irk irl irm iro irr irs iru is- isb isd ise isi isk isl ism iso isr iss isu iu- iub iud iue iui ium iur ius kbb kbd kbe kbi kbk kbl kbm kbo kbr kbs kbu kdb kde kdk kdl kdm kdo kdr kds kdu ke- keb ked kee kei kek kel kem keo ker kes kib kid kie kii kik kil kim kio kir kis kiu kkb kke kki kkk kkl kkm kkr kks kku kl- klb kld kli klm klo klr kls klu kmb kmd kme kmi kmk kml kmm kmo kms kmu kob kod koe koi kok kol kom koo kor kos kou krd kri krk krl kro krr krs kru ksb ksd kse ksi ksk ksl ksm kso ksr kss ksu kub kud kue kui kuk kul kum kur kus kuu lbb lbd lbe lbi lbk lbl lbm lbo lbr lbs lbu ldb ldd lde ldi ldk ldl ldm ldo ldr lds ldu leb led lee lei lek lel lem leo ler les leu lib lid lie lii lik lil lim lio lir lis liu lkb lkl lkr lks llb lld lle lli llk lll llm llo llr lls llu lmb lmd lme lmi lmk lml lmm lmo lmr lms lmu lob lod loe loi lok lol lom loo lor los lou lrb lrd lri lrk lrm lro lrr lrs lru lsb lsd lse lsi lsk lsl lsm lso lsr lss lsu lub lud lue lui luk lul lum luo lur lus luu m-o m-r mbb mbd mbe mbi mbk mbl mbm mbo mbr mbs mbu mdb mdd mde mdi mdk mdl mdm mdo mdr mds mdu meb med mee mei mek mel mem meo mer mes meu mi- mib mid mie mii mik mil mim mio mir mis miu mkb mkd mke mkk mkl mkm mko mkr mks mku mlb mld mle mli mlk mll mlm mlo mlr mls mlu mmb mmd mme mmi mmk mml mmm mmo mmr mms mmu mob mod moe moi mok mol mom moo mor mos mou mrb mrd mre mri mrk mrl mrm mro mrr mrs mru msb msd mse msi msk msl msm mso msr mss msu mub mud mue mui muk mul mum mur mus muu o-i ob- obb obd obe obi obk obl obm obo obr obs obu odb odd ode odi odl odm odo odr ods odu oeb oed oee oei oel oem oeo oer oes oib oid oie oii oik oil oim oio oir ois oiu okb okd oke oki okk okl oko okr oks oku olb old ole oli olk oll olm olo ols olu om- omb omd ome omi oml omm omo omr oms omu oo- oob ood ooi ook ool oom ooo oor oos or- orb ord ore ori ork orl orm oro orr ors oru os- osb osd ose osi osk osl osm oso osr oss osu ou- oud oue oui ouk oul oum ouo our ous rbb rbd rbe rbi rbk rbl rbm rbo rbr rbs rbu rdb rdd rde rdi rdl rdm rdo rdr rds rdu re- reb red ree rei rek rel rem reo rer res reu rib rid rie rii rik ril rim rio rir ris rkb rke rkk rkm rko rks rku rld rle rli rll rlm rlo rlr rls rlu