-up b-p b-u bbb bbe bbi bbn bbp bbs bbu bbx be- beb bee bei ben bep bes beu bex bi- bib bie bii bin bip bis biu bix bnb bne bni bnn bnp bns bnu bnx bpb bpe bpi bpn bpp bps bpu bpx bsb bse bsi bsn bsp bss bsu bsx bub bue bui bun bup bus buu bux bxb bxi bxn bxx ebb ebe ebi ebn ebp ebs ebu ebx eeb eee een eep ees eex eib eie eii ein eip eis eiu eix en- enb ene eni enn enp ens enu ep- epb epe epi epn epp eps epu epx es- esb ese esi esn esp ess esu esx eu- eub eue eui eun eup eus eux ex- exe exi exp exs exu exx ibb ibe ibi ibn ibp ibs ibu ibx ie- iee iei ien iep ies iex iib iie iii iin iip iis iiu iix in- inb ine ini inn inp ins inu inx ipb ipe ipi ipn ipp ips ipu ipx is- isb ise isi isn isp iss isu iu- iub iue iui iup ius ixe ixi ixn n-i nbb nbe nbi nbn nbp nbs nbu nbx ne- neb nee nei nen nep nes neu nex nib nie nii nin nip nis niu nix nnb nne nni nnn nnp nns nnu npb npe npi npn npp nps npu nsb nse nsi nsn nsp nss nsu nsx nub nue nui nun nup nus nuu nux p-p pbb pbe pbi pbn pbp pbs pbu pbx peb pee pei pen pep pes peu pex pib pie pii pin pip pis piu pix pn- pnb pne pni pnn pnp pns pnu pnx ppb ppe ppi ppn ppp pps ppu ppx ps- psb pse psi psn psp pss psu psx pub pue pui pun pup pus puu pxe pxs sbb sbe sbi sbn sbp sbs sbu sbx se- seb see sei sen sep ses seu sex sib sie sii sin sip sis siu six snb sne sni snn snp sns snu spb spe spi spn spp sps spu spx ss- ssb sse ssi ssn ssp sss ssu ssx sub sue sui sun sup sus suu sux sxi sxn sxs sxu ubb ube ubi ubn ubp ubs ubu ubx ueb uee uei uen uep ues uib uie uii uin uip uis uiu un- unb une uni unn unp uns unu unx up- upb upe upi upn upp ups upu upx usb use usi usn usp uss usu usx uue uun uus uuu uxb uxu xbe xbx xee xen xep xes xeu xex xie xii xin xis xiu xix xns xnu xpb xpe xpn xpp xps xsb xsi xsp xss xue xui xun xup xus xxi xxp xxx