-er ddd dde ddf ddi ddo ddp ddr ddz de- ded dee def dei deo dep der dez dfd dfe dff dfi dfo dfp dfr dfz di- did die dif dii dio dip dir diz dod doe dof doi doo dop dor doz dpd dpe dpf dpi dpo dpp dpr dpz drd dre dri dro drp drr drz dzd dze dzi dzo dzp dzr ed- edd ede edf edi edo edp edr eed eee eef eeo eep eer ef- efd efe eff efi efo efp efr eid eie eif eii eio eip eir eo- eod eoe eof eoi eoo eop eor ep- epd epe epf epi epo epp epr epz erd ere erf eri ero erp err erz eze ezf ezo ezr ezz fdd fde fdf fdi fdo fdp fdr fed fee fef fei feo fep fer fez ffd ffe fff ffi ffo ffp ffr ffz fid fie fif fii fip fir fiz foe fof foi foo fop for foz fpd fpe fpi fpo fpp fpr frd fre frf fri fro frp frr fzd i-d i-f idd ide idf idi ido idp idr ie- ied iee ief iei iep ier ifd ife iff ifi ifo ifp ifr ifz iid iie iif iii iio iip iir io- iod ioe iof ioi ioo iop ior ipd ipe ipf ipi ipo ipp ipr ir- ird ire irf iri iro irp irr ize izi izo izz o-i odd ode odf odi odo odp odr oed oee oef oei oeo oep oer of- ofd ofe off ofi ofo ofp ofr ofz oid oie oif oii oio oip oir oiz oo- ood oof ooi ooo oop oor op- opd ope opf opi opo opp opr or- ord ore orf ori oro orp orr orz oze ozo ozz p-p pdd pde pdf pdi pdo pdp pdr pdz ped pee pef pei peo pep per pez pfd pfe pff pfi pfo pfp pfr pid pie pif pii pio pip pir piz pod poe pof poi poo pop por poz ppd ppe ppf ppi ppo ppp ppr ppz prd pre prf pri pro prp prr prz pzp rdd rde rdf rdi rdo rdp rdr re- red ree ref rei reo rep rer rez rfd rfe rff rfi rfo rfp rfr rfz rid rie rif rii rio rip rir riz rod roe rof roi roo rop ror roz rpd rpe rpf rpi rpo rpp rpr rpz rrd rrf rri rrp rrr rze rzo zdf zed zee zef zeo zep zer zez zfd zfr zid zie zif zio zip zir ziz zo- zod zoe zof zoi zoo zor zpe zpf zpi zpo zpp zpr zro zrp zzr zzz