ddd dde ddi ddo ddp ddz de- ded dee dei deo dep dez di- did die dii dio dip diz dod doe doi doo dop doz dpd dpe dpi dpo dpp dpz dzd dze dzi dzo dzp ed- edd ede edi edo edp eed eee eeo eep eid eie eii eio eip eo- eod eoe eoi eoo eop ep- epd epe epi epo epp epz eze ezo ezz i-d idd ide idi ido idp ie- ied iee iei iep iid iie iii iio iip io- iod ioe ioi ioo iop ipd ipe ipi ipo ipp ize izi izo izz o-i odd ode odi odo odp oed oee oei oeo oep oid oie oii oio oip oiz oo- ood ooi ooo oop op- opd ope opi opo opp oze ozo ozz p-p pdd pde pdi pdo pdp pdz ped pee pei peo pep pez pid pie pii pio pip piz pod poe poi poo pop poz ppd ppe ppi ppo ppp ppz pzp zed zee zeo zep zez zid zie zio zip ziz zo- zod zoe zoi zoo zpe zpi zpo zpp zzz