-er b-u bbb bbe bbi bbk bbl bbm bbn bbr bbu be- beb bee bei bek bel bem ben ber beu bi- bib bie bii bik bil bim bin bir biu bkb bke bkk bkl bkm bkn bkr blb ble bli blk bll blm bln blr blu bmb bme bmi bmk bml bmm bmn bmr bmu bnb bne bni bnk bnl bnn bnr bnu brb bre bri brk brl brm brn brr bru bub bue bui buk bul bum bun bur buu ebb ebe ebi ebk ebl ebm ebn ebr ebu eeb eee eek eel eem een eer eib eie eii eik eil eim ein eir eiu ekb eke eki ekl ekr eku elb ele eli elk ell elm eln elr elu em- emb eme emi emk eml emm emn emr emu en- enb ene eni enk enl enm enn enr enu erb ere eri erk erl erm ern err eru eu- eub eue eui eul eun eur ibb ibe ibi ibk ibl ibm ibn ibr ibu ie- iee iei iek iel iem ien ier iib iie iii iil iim iin iir iiu ikb ike iki ikk ikl ikr iku il- ilb ile ili ilk ill ilm iln ilr ilu im- imb ime imi iml imm imn imu in- inb ine ini ink inl inm inn inr inu ir- irb ire iri irk irl irm irn irr iru iu- iub iue iui ium iur kbb kbe kbi kbk kbl kbm kbn kbr kbu ke- keb kee kei kek kel kem ken ker kib kie kii kik kil kim kin kir kiu kkb kke kki kkk kkl kkm kkn kkr kku kl- klb kli klm klr klu kmb kme kmi kmk kml kmm kmu kn- kne kni knk knl knm knn knr knu kri krk krl krn krr kru kub kue kui kuk kul kum kun kur kuu lbb lbe lbi lbk lbl lbm lbr lbu leb lee lei lek lel lem len ler leu lib lie lii lik lil lim lin lir liu lkb lkl lkr llb lle lli llk lll llm lln llr llu lmb lme lmi lmk lml lmm lmn lmr lmu lnb lne lni lnk lnl lnm lnn lnr lnu lrb lri lrk lrm lrn lrr lru lub lue lui luk lul lum lun lur luu m-r mbb mbe mbi mbk mbl mbm mbr mbu meb mee mei mek mel mem men mer meu mi- mib mie mii mik mil mim min mir miu mkb mke mkk mkl mkm mkn mkr mku mlb mle mli mlk mll mlm mln mlr mlu mmb mme mmi mmk mml mmm mmn mmr mmu mnb mne mni mnk mnl mnm mnn mnr mnu mrb mre mri mrk mrl mrm mrn mrr mru mub mue mui muk mul mum mun mur muu n-i nbb nbe nbi nbk nbl nbm nbn nbr nbu ne- neb nee nei nek nel nem nen ner neu nib nie nii nik nil nim nin nir niu nke nki nkk nkm nkn nkr nku nlb nle nli nlk nll nlm nln nlr nlu nmb nme nmi nmk nml nmm nmn nmr nmu nnb nne nni nnk nnl nnm nnn nnu nrb nre nri nrk nrl nrm nrn nrr nru nub nue nui nuk nul num nun nur nuu rbb rbe rbi rbk rbl rbm rbn rbr rbu re- reb ree rei rek rel rem ren rer reu rib rie rii rik ril rim rin rir rkb rke rkk rkm rku rle rli rll rlm rln rlr rlu rmb rme rmi rml rmm rmn rmr rnb rni rnm rnn rnr rnu rrb rri rrk rrl rrm rrn rrr rru rub rue rui ruk rum run rur ruu ubb ube ubi ubk ubl ubn ubr ubu ueb uee uei uel uem uen uer uib uie uii uil uim uin uir uiu ukb uke uki ukk ukl ukn ukr uku ulb ule uli ulk ull ulm uln ulr ulu um- umb ume umi uml umm umn umr umu un- unb une uni unk unl unm unn unr unu ur- urb ure uri urk url urm urn urr uru uue uum uun uur uuu