-er -up b-p b-u bbb bbe bbi bbl bbn bbp bbr bbu be- beb bee bei bel ben bep ber beu bi- bib bie bii bil bin bip bir biu blb ble bli bll bln blp blr blu bnb bne bni bnl bnn bnp bnr bnu bpb bpe bpi bpl bpn bpp bpr bpu brb bre bri brl brn brp brr bru bub bue bui bul bun bup bur buu ebb ebe ebi ebl ebn ebp ebr ebu eeb eee eel een eep eer eib eie eii eil ein eip eir eiu elb ele eli ell eln elp elr elu en- enb ene eni enl enn enp enr enu ep- epb epe epi epl epn epp epr epu erb ere eri erl ern erp err eru eu- eub eue eui eul eun eup eur ibb ibe ibi ibl ibn ibp ibr ibu ie- iee iei iel ien iep ier iib iie iii iil iin iip iir iiu il- ilb ile ili ill iln ilp ilr ilu in- inb ine ini inl inn inp inr inu ipb ipe ipi ipl ipn ipp ipr ipu ir- irb ire iri irl irn irp irr iru iu- iub iue iui iup iur l-p lbb lbe lbi lbl lbp lbr lbu leb lee lei lel len lep ler leu lib lie lii lil lin lip lir liu llb lle lli lll lln llp llr llu lnb lne lni lnl lnn lnp lnr lnu lpb lpe lpi lpl lpn lpp lpr lpu lrb lri lrn lrp lrr lru lub lue lui lul lun lup lur luu n-i nbb nbe nbi nbl nbn nbp nbr nbu ne- neb nee nei nel nen nep ner neu nib nie nii nil nin nip nir niu nlb nle nli nll nln nlp nlr nlu nnb nne nni nnl nnn nnp nnu npb npe npi npl npn npp npr npu nrb nre nri nrl nrn nrp nrr nru nub nue nui nul nun nup nur nuu p-p pbb pbe pbi pbl pbn pbp pbr pbu peb pee pei pel pen pep per peu pib pie pii pil pin pip pir piu plb ple pli pll pln plp plr plu pn- pnb pne pni pnl pnn pnp pnr pnu ppb ppe ppi ppl ppn ppp ppr ppu prb pre pri prl prn prp prr pru pub pue pui pul pun pup pur puu rbb rbe rbi rbl rbn rbp rbr rbu re- reb ree rei rel ren rep rer reu rib rie rii ril rin rip rir rle rli rll rln rlp rlr rlu rnb rni rnn rnp rnr rnu rpb rpe rpi rpl rpn rpp rpr rpu rrb rri rrl rrn rrp rrr rru rub rue rui run rup rur ruu ubb ube ubi ubl ubn ubp ubr ubu ueb uee uei uel uen uep uer uib uie uii uil uin uip uir uiu ulb ule uli ull uln ulp ulr ulu un- unb une uni unl unn unp unr unu up- upb upe upi upn upp upr upu ur- urb ure uri url urn urp urr uru uue uun uur uuu