b-p bbb bbe bbi bbl bbn bbp bbs be- beb bee bei bel ben bep bes bi- bib bie bii bil bin bip bis blb ble bli bll bln blp bls bnb bne bni bnl bnn bnp bns bpb bpe bpi bpl bpn bpp bps bsb bse bsi bsl bsn bsp bss ebb ebe ebi ebl ebn ebp ebs eeb eee eel een eep ees eib eie eii eil ein eip eis elb ele eli ell eln elp els en- enb ene eni enl enn enp ens ep- epb epe epi epl epn epp eps es- esb ese esi esl esn esp ess ibb ibe ibi ibl ibn ibp ibs ie- iee iei iel ien iep ies iib iie iii iil iin iip iis il- ilb ile ili ill iln ilp ils in- inb ine ini inl inn inp ins ipb ipe ipi ipl ipn ipp ips is- isb ise isi isl isn isp iss l-p lbb lbe lbi lbl lbp lbs leb lee lei lel len lep les lib lie lii lil lin lip lis llb lle lli lll lln llp lls lnb lne lni lnl lnn lnp lns lpb lpe lpi lpl lpn lpp lps lsb lse lsi lsl lsn lsp lss n-i nbb nbe nbi nbl nbn nbp nbs ne- neb nee nei nel nen nep nes nib nie nii nil nin nip nis nlb nle nli nll nln nlp nls nnb nne nni nnl nnn nnp nns npb npe npi npl npn npp nps nsb nse nsi nsl nsn nsp nss p-p pbb pbe pbi pbl pbn pbp pbs peb pee pei pel pen pep pes pib pie pii pil pin pip pis plb ple pli pll pln plp pls pn- pnb pne pni pnl pnn pnp pns ppb ppe ppi ppl ppn ppp pps ps- psb pse psi psl psn psp pss sbb sbe sbi sbl sbn sbp sbs se- seb see sei sel sen sep ses sib sie sii sil sin sip sis slb sle sli sll sln slp sls snb sne sni snl snn snp sns spb spe spi spl spn spp sps ss- ssb sse ssi ssl ssn ssp sss