-ey ddd dde ddf ddp ddt ddy de- ded dee def dep det dey dfd dfe dff dfp dft dpd dpe dpf dpp dpt dtd dte dtf dtp dtt dty dy- dyd dye dyp dyy ed- edd ede edf edp edt edy eed eee eef eep eet eey ef- efd efe eff efp eft ep- epd epe epf epp ept etd ete etf etp ett ety eyd eye eyp eyt fdd fde fdf fdp fdt fed fee fef fep fet fey ffd ffe fff ffp fft ffy fpd fpe fpp fpt fpy ftd fte ftf ftp ftt fty fy- fye fyp p-p pdd pde pdf pdp pdt ped pee pef pep pet pey pfd pfe pff pfp pft pfy ppd ppe ppf ppp ppt pt- ptd pte ptf ptp ptt pty py- pyd pye pyf pyt tdd tde tdf tdp tdt tdy te- ted tee tef tep tet tey tfd tfe tff tfp tft tpd tpe tpf tpp tpt ttd tte ttf ttp ttt tty tyd tye tyf typ tyt yde ydt ydy yed yee yef yep yet yey yfd yfe yff yft ypd ypf ytd yte ytf ytp ytt yye yyf yyt yyy