-er -up b-p b-u bbb bbe bbg bbi bbn bbp bbr bbu be- beb bee beg bei ben bep ber beu bgb bge bgg bgi bgn bgp bgr bgu bi- bib bie big bii bin bip bir biu bnb bne bng bni bnn bnp bnr bnu bpb bpe bpg bpi bpn bpp bpr bpu brb bre brg bri brn brp brr bru bub bue bug bui bun bup bur buu ebb ebe ebg ebi ebn ebp ebr ebu eeb eee eeg een eep eer egb ege egg egi egn egp egr egu eib eie eig eii ein eip eir eiu en- enb ene eng eni enn enp enr enu ep- epb epe epg epi epn epp epr epu erb ere erg eri ern erp err eru eu- eub eue eug eui eun eup eur g-p gbe gbg gbi gbn gbp gbr gbu ge- geb gee geg gei gen gep ger geu ggb ggg ggi ggn ggp ggr ggu gib gie gig gii gin gip gir giu gnb gne gni gnn gnp gnr gnu gpb gpe gpg gpi gpn gpp gpr gpu grb gre grg gri grn grp grr gru gu- gub gue gug gui gun gup gur guu ibb ibe ibg ibi ibn ibp ibr ibu ie- iee ieg iei ien iep ier igb ige igg igi ign igp igr igu iib iie iii iin iip iir iiu in- inb ine ing ini inn inp inr inu ipb ipe ipg ipi ipn ipp ipr ipu ir- irb ire irg iri irn irp irr iru iu- iub iue iug iui iup iur n-i nbb nbe nbg nbi nbn nbp nbr nbu ne- neb nee neg nei nen nep ner neu ngb nge ngg ngi ngn ngp ngu nib nie nig nii nin nip nir niu nnb nne nng nni nnn nnp nnu npb npe npg npi npn npp npr npu nrb nre nrg nri nrn nrp nrr nru nub nue nug nui nun nup nur nuu p-p pbb pbe pbg pbi pbn pbp pbr pbu peb pee peg pei pen pep per peu pgb pge pgg pgi pgn pgp pgr pib pie pig pii pin pip pir piu pn- pnb pne png pni pnn pnp pnr pnu ppb ppe ppg ppi ppn ppp ppr ppu prb pre prg pri prn prp prr pru pub pue pug pui pun pup pur puu rbb rbe rbg rbi rbn rbp rbr rbu re- reb ree reg rei ren rep rer reu rgb rge rgg rgi rgn rgp rgr rib rie rig rii rin rip rir rnb rng rni rnn rnp rnr rnu rpb rpe rpg rpi rpn rpp rpr rpu rrb rrg rri rrn rrp rrr rru rub rue rug rui run rup rur ruu ubb ube ubg ubi ubn ubp ubr ubu ueb uee ueg uei uen uep uer ugb uge ugg ugi ugn ugp ugr ugu uib uie uig uii uin uip uir uiu un- unb une ung uni unn unp unr unu up- upb upe upg upi upn upp upr upu ur- urb ure urg uri urn urp urr uru uue uug uun uur uuu