-up b-p b-u bbb bbe bbl bbn bbp bbs bbu be- beb bee bel ben bep bes beu blb ble bll bln blp bls blu bnb bne bnl bnn bnp bns bnu bpb bpe bpl bpn bpp bps bpu bsb bse bsl bsn bsp bss bsu bub bue bul bun bup bus buu ebb ebe ebl ebn ebp ebs ebu eeb eee eel een eep ees elb ele ell eln elp els elu en- enb ene enl enn enp ens enu ep- epb epe epl epn epp eps epu es- esb ese esl esn esp ess esu eu- eub eue eul eun eup eus l-p lbb lbe lbl lbp lbs lbu leb lee lel len lep les leu llb lle lll lln llp lls llu lnb lne lnl lnn lnp lns lnu lpb lpe lpl lpn lpp lps lpu lsb lse lsl lsn lsp lss lsu lub lue lul lun lup lus luu nbb nbe nbl nbn nbp nbs nbu ne- neb nee nel nen nep nes neu nlb nle nll nln nlp nls nlu nnb nne nnl nnn nnp nns nnu npb npe npl npn npp nps npu nsb nse nsl nsn nsp nss nsu nub nue nul nun nup nus nuu p-p pbb pbe pbl pbn pbp pbs pbu peb pee pel pen pep pes peu plb ple pll pln plp pls plu pn- pnb pne pnl pnn pnp pns pnu ppb ppe ppl ppn ppp pps ppu ps- psb pse psl psn psp pss psu pub pue pul pun pup pus puu sbb sbe sbl sbn sbp sbs sbu se- seb see sel sen sep ses seu slb sle sll sln slp sls slu snb sne snl snn snp sns snu spb spe spl spn spp sps spu ss- ssb sse ssl ssn ssp sss ssu sub sue sul sun sup sus suu ubb ube ubl ubn ubp ubs ubu ueb uee uel uen uep ues ulb ule ull uln ulp uls ulu un- unb une unl unn unp uns unu up- upb upe upn upp ups upu usb use usl usn usp uss usu uue uun uus uuu