dddd ddre dedd dede dedu deed deep deer depe depp depr der- dere derp derr deue deur dewe dper dred dree drew drue drup druu dudd dude dudu duer dupe dure duru duur dwdd dwdu dwer dwrd dwrw dwwe dwww edde eddp ede- eder edru edup edur eede eedu eeee epee eper eppp eprp erde ered erer erew erpe erre erur eude euer eur- eure euwe ewer ewew ewre pdpr ped- pede peed peep peer pepd pepe per- perd pere perp perr peru peur pewe pper pppd pppp ppru ppur pre- pred pree prep preu prew prpd prrd prud prue pruu pu-e pudu pued puer pueu pupe pupu pur- pure purp purr puru puwe rder redd rede redr redu reed reep repe repp repr repu rerd rere reru reue reup reuu rewe rpdp rred rrrr rudd rude rudp rued ruer rupe rupp rurd rure rurp ruru ruud ruwe u-rp uder udpd uewe uped uppe uppp uppu upup urde urdu ure- ured urre urup urur uuuu uwer wddd wdde wddw wded wdep wder wdpr wdpw wdre wdrr wdru wdur wdwd wdwr wedd wede wedr wedu wedw weed weep weer weeu wepe wepp wepr wer- werd were werp werr werw weup wewe wpdr wpep wper wppr wprd wpre wprp wprr wpup wpur wrdd wrdr wrdu wrdw wred wree wrer wrew wrpp wrpr wrpw wrrd wrre wrrw wrup wrwd wrwr wudd wude wudr wudu wupe wupr wupw wur- wurd wurp wuuu wuwe wwdp wwdr wwdw wwer wwpr wwpw wwrd wwre wwrr wwru wwrw wwwe wwwr wwww