-up ddd dde ddo ddp ddu de- ded dee deo dep deu dod doe doo dop dou dpd dpe dpo dpp dpu dud due duo dup ed- edd ede edo edp edu eed eee eeo eep eo- eod eoe eoo eop eou ep- epd epe epo epp epu eu- eud eue eup odd ode odo odp odu oed oee oeo oep oo- ood ooo oop op- opd ope opo opp ou- oud oue ouo oup p-p pdd pde pdo pdp pdu ped pee peo pep peu pod poe poo pop pou ppd ppe ppo ppp ppu pud pue pup puu udd ude udo udp udu ued uee uep uod uoe uoo uop up- upd upe upo upp upu uue uuu