b-u bbb bbe bbi bbl bbm bbn bbs bbu be- beb bee bei bel bem ben bes beu bi- bib bie bii bil bim bin bis biu blb ble bli bll blm bln bls blu bmb bme bmi bml bmm bmn bms bmu bnb bne bni bnl bnn bns bnu bsb bse bsi bsl bsm bsn bss bsu bub bue bui bul bum bun bus buu ebb ebe ebi ebl ebm ebn ebs ebu eeb eee eel eem een ees eib eie eii eil eim ein eis eiu elb ele eli ell elm eln els elu em- emb eme emi eml emm emn ems emu en- enb ene eni enl enm enn ens enu es- esb ese esi esl esm esn ess esu eu- eub eue eui eul eun eus ibb ibe ibi ibl ibm ibn ibs ibu ie- iee iei iel iem ien ies iib iie iii iil iim iin iis iiu il- ilb ile ili ill ilm iln ils ilu im- imb ime imi iml imm imn ims imu in- inb ine ini inl inm inn ins inu is- isb ise isi isl ism isn iss isu iu- iub iue iui ium ius lbb lbe lbi lbl lbm lbs lbu leb lee lei lel lem len les leu lib lie lii lil lim lin lis liu llb lle lli lll llm lln lls llu lmb lme lmi lml lmm lmn lms lmu lnb lne lni lnl lnm lnn lns lnu lsb lse lsi lsl lsm lsn lss lsu lub lue lui lul lum lun lus luu mbb mbe mbi mbl mbm mbs mbu meb mee mei mel mem men mes meu mi- mib mie mii mil mim min mis miu mlb mle mli mll mlm mln mls mlu mmb mme mmi mml mmm mmn mms mmu mnb mne mni mnl mnm mnn mns mnu msb mse msi msl msm msn mss msu mub mue mui mul mum mun mus muu n-i nbb nbe nbi nbl nbm nbn nbs nbu ne- neb nee nei nel nem nen nes neu nib nie nii nil nim nin nis niu nlb nle nli nll nlm nln nls nlu nmb nme nmi nml nmm nmn nms nmu nnb nne nni nnl nnm nnn nns nnu nsb nse nsi nsl nsm nsn nss nsu nub nue nui nul num nun nus nuu sbb sbe sbi sbl sbm sbn sbs sbu se- seb see sei sel sem sen ses seu sib sie sii sil sim sin sis siu slb sle sli sll slm sln sls slu smb sme smi sml smm smn sms smu snb sne sni snl snm snn sns snu ss- ssb sse ssi ssl ssm ssn sss ssu sub sue sui sul sum sun sus suu ubb ube ubi ubl ubn ubs ubu ueb uee uei uel uem uen ues uib uie uii uil uim uin uis uiu ulb ule uli ull ulm uln uls ulu um- umb ume umi uml umm umn ums umu un- unb une uni unl unm unn uns unu usb use usi usl usm usn uss usu uue uum uun uus uuu