b-p bbb bbe bbi bbl bbn bbp be- beb bee bei bel ben bep bi- bib bie bii bil bin bip blb ble bli bll bln blp bnb bne bni bnl bnn bnp bpb bpe bpi bpl bpn bpp ebb ebe ebi ebl ebn ebp eeb eee eel een eep eib eie eii eil ein eip elb ele eli ell eln elp en- enb ene eni enl enn enp ep- epb epe epi epl epn epp ibb ibe ibi ibl ibn ibp ie- iee iei iel ien iep iib iie iii iil iin iip il- ilb ile ili ill iln ilp in- inb ine ini inl inn inp ipb ipe ipi ipl ipn ipp l-p lbb lbe lbi lbl lbp leb lee lei lel len lep lib lie lii lil lin lip llb lle lli lll lln llp lnb lne lni lnl lnn lnp lpb lpe lpi lpl lpn lpp n-i nbb nbe nbi nbl nbn nbp ne- neb nee nei nel nen nep nib nie nii nil nin nip nlb nle nli nll nln nlp nnb nne nni nnl nnn nnp npb npe npi npl npn npp p-p pbb pbe pbi pbl pbn pbp peb pee pei pel pen pep pib pie pii pil pin pip plb ple pli pll pln plp pn- pnb pne pni pnl pnn pnp ppb ppe ppi ppl ppn ppp