-er -up eee eeg een eep eer eex ege egg egi egn egp egr egu egx eie eig eii ein eip eir eiu eix en- ene eng eni enn enp enr enu ep- epe epg epi epn epp epr epu epx ere erg eri ern erp err eru eu- eue eug eui eun eup eur eux ex- exe exi exp exr exu exx g-p ge- gee geg gei gen gep ger geu gex ggg ggi ggn ggp ggr ggu gie gig gii gin gip gir giu gne gni gnn gnp gnr gnu gpe gpg gpi gpn gpp gpr gpu gpx gre grg gri grn grp grr gru grx gu- gue gug gui gun gup gur guu gxp ie- iee ieg iei ien iep ier iex ige igg igi ign igp igr igu iie iii iin iip iir iiu iix in- ine ing ini inn inp inr inu inx ipe ipg ipi ipn ipp ipr ipu ipx ir- ire irg iri irn irp irr iru irx iu- iue iug iui iup iur ixe ixi ixn n-i ne- nee neg nei nen nep ner neu nex nge ngg ngi ngn ngp ngu nie nig nii nin nip nir niu nix nne nng nni nnn nnp nnu npe npg npi npn npp npr npu nre nrg nri nrn nrp nrr nru nrx nue nug nui nun nup nur nuu nux p-p pee peg pei pen pep per peu pex pge pgg pgi pgn pgp pgr pie pig pii pin pip pir piu pix pn- pne png pni pnn pnp pnr pnu pnx ppe ppg ppi ppn ppp ppr ppu ppx pre prg pri prn prp prr pru prx pue pug pui pun pup pur puu pxe pxg pxr re- ree reg rei ren rep rer reu rex rge rgg rgi rgn rgp rgr rgx rie rig rii rin rip rir rix rng rni rnn rnp rnr rnu rpe rpg rpi rpn rpp rpr rpu rpx rrg rri rrn rrp rrr rru rue rug rui run rup rur ruu rux rxp rxr uee ueg uei uen uep uer uge ugg ugi ugn ugp ugr ugu ugx uie uig uii uin uip uir uiu un- une ung uni unn unp unr unu unx up- upe upg upi upn upp upr upu upx ur- ure urg uri urn urp urr uru urx uue uug uun uur uuu uxr uxu xee xeg xen xep xer xeu xex xge xgi xgp xie xii xin xiu xix xnu xpe xpg xpn xpp xrx xue xui xun xup xxi xxp xxx