-er ddd dde ddg ddi ddo ddp ddr ddz de- ded dee deg dei deo dep der dez dgd dge dgg dgi dgp dgr dgz di- did die dig dii dio dip dir diz dod doe dog doi doo dop dor doz dpd dpe dpg dpi dpo dpp dpr dpz drd dre drg dri dro drp drr drz dzd dze dzi dzo dzp dzr ed- edd ede edg edi edo edp edr eed eee eeg eeo eep eer egd ege egg egi ego egp egr eid eie eig eii eio eip eir eo- eod eoe eog eoi eoo eop eor ep- epd epe epg epi epo epp epr epz erd ere erg eri ero erp err erz eze ezo ezr ezz g-d g-p gdd gde gdi gdo gdp gdr ge- ged gee geg gei geo gep ger gez ggd ggg ggi ggo ggp ggr ggz gid gie gig gii gio gip gir giz god goe gog goi goo gop gor goz gpd gpe gpg gpi gpo gpp gpr gpz grd gre grg gri gro grp grr gzo gzp gzr i-d idd ide idg idi ido idp idr ie- ied iee ieg iei iep ier igd ige igg igi igo igp igr iid iie iii iio iip iir io- iod ioe iog ioi ioo iop ior ipd ipe ipg ipi ipo ipp ipr ir- ird ire irg iri iro irp irr ize izi izo izz o-i odd ode odg odi odo odp odr oed oee oeg oei oeo oep oer ogd oge ogg ogi ogo ogp oid oie oii oio oip oir oiz oo- ood oog ooi ooo oop oor op- opd ope opg opi opo opp opr or- ord ore org ori oro orp orr orz oze ozo ozz p-p pdd pde pdg pdi pdo pdp pdr pdz ped pee peg pei peo pep per pez pgd pge pgg pgi pgo pgp pgr pid pie pig pii pio pip pir piz pod poe pog poi poo pop por poz ppd ppe ppg ppi ppo ppp ppr ppz prd pre prg pri pro prp prr prz pzp rdd rde rdg rdi rdo rdp rdr re- red ree reg rei reo rep rer rez rgd rge rgg rgi rgo rgp rgr rid rie rig rii rio rip rir riz rod roe rog roi roo rop ror roz rpd rpe rpg rpi rpo rpp rpr rpz rrd rrg rri rrp rrr rze rzo z-g zed zee zeo zep zer zez zgg zgi zid zie zig zio zip zir ziz zo- zod zoe zog zoi zoo zor zpe zpg zpi zpo zpp zpr zro zrp zzr zzz