ddd dde ddo ddp ddt de- ded dee deo dep det dod doe doo dop dot dpd dpe dpo dpp dpt dtd dte dto dtp dtt ed- edd ede edo edp edt eed eee eeo eep eet eo- eod eoe eoo eop eot ep- epd epe epo epp ept etd ete eto etp ett odd ode odo odp odt oed oee oeo oep oet oo- ood ooo oop oot op- opd ope opo opp opt ot- otd ote oto otp ott p-p pdd pde pdo pdp pdt ped pee peo pep pet pod poe poo pop pot ppd ppe ppo ppp ppt pt- ptd pte pto ptp ptt tdd tde tdo tdp tdt te- ted tee teo tep tet to- tod toe too top tot tpd tpe tpo tpp tpt ttd tte tto ttp ttt