-er -up b-p b-u bbb bbe bbf bbi bbn bbp bbr bbu be- beb bee bef bei ben bep ber beu bfb bfe bff bfi bfn bfp bfr bfu bi- bib bie bif bii bin bip bir biu bnb bne bnf bni bnn bnp bnr bnu bpb bpe bpf bpi bpn bpp bpr bpu brb bre brf bri brn brp brr bru bub bue buf bui bun bup bur buu ebb ebe ebf ebi ebn ebp ebr ebu eeb eee eef een eep eer ef- efb efe eff efi efp efr eib eie eif eii ein eip eir eiu en- enb ene enf eni enn enp enr enu ep- epb epe epf epi epn epp epr epu erb ere erf eri ern erp err eru eu- eub eue euf eui eun eup eur fbb fbe fbf fbi fbn fbp fbr fbu feb fee fef fei fen fep fer feu ffe fff ffi ffn ffp ffr ffu fib fie fif fii fin fip fir fiu fnb fne fnf fni fnn fnp fnr fnu fpb fpe fpi fpn fpp fpr fpu frb fre frf fri frn frp frr fru fub fue fuf fui fun fup fur fuu i-f ibb ibe ibf ibi ibn ibp ibr ibu ie- iee ief iei ien iep ier ifb ife iff ifi ifn ifp ifr ifu iib iie iif iii iin iip iir iiu in- inb ine inf ini inn inp inr inu ipb ipe ipf ipi ipn ipp ipr ipu ir- irb ire irf iri irn irp irr iru iu- iub iue iui iup iur n-i nbb nbe nbf nbi nbn nbp nbr nbu ne- neb nee nef nei nen nep ner neu nfb nfe nff nfi nfn nfp nfr nfu nib nie nif nii nin nip nir niu nnb nne nnf nni nnn nnp nnu npb npe npf npi npn npp npr npu nrb nre nrf nri nrn nrp nrr nru nub nue nui nun nup nur nuu p-p pbb pbe pbf pbi pbn pbp pbr pbu peb pee pef pei pen pep per peu pfb pfe pff pfi pfn pfp pfr pfu pib pie pif pii pin pip pir piu pn- pnb pne pnf pni pnn pnp pnr pnu ppb ppe ppf ppi ppn ppp ppr ppu prb pre prf pri prn prp prr pru pub pue puf pui pun pup pur puu rbb rbe rbf rbi rbn rbp rbr rbu re- reb ree ref rei ren rep rer reu rfb rfe rff rfi rfn rfp rfr rfu rib rie rif rii rin rip rir rnb rni rnn rnp rnr rnu rpb rpe rpf rpi rpn rpp rpr rpu rrb rrf rri rrn rrp rrr rru rub rue ruf rui run rup rur ruu ubb ube ubf ubi ubn ubp ubr ubu ueb uee uef uei uen uep uer ufe uff ufi ufn ufp ufr ufu uib uie uif uii uin uip uir uiu un- unb une unf uni unn unp unr unu up- upb upe upf upi upn upp upr upu ur- urb ure urf uri urn urp urr uru uue uun uur uuu