dddd ddre ddry dedd dede deed deep deer depe depp depr der- dere derp derr dery dex- dexe dexy deye deyr dhed dhee dher dhpr dhye dper dphp dpph dppx dpyd dred dree dreh drey dry- drye dxdr dxed dxep dxpy dxrd dxre dxrp dxrr dxrx dxxr dxxx dxyr dydd dyde dyed dyeh dyep dyer dyey dyhh dyhp dyhr dyph dyr- dyre dyrx dyxr dyxx dyxy dyyr edde eddp eddy ede- edeh eder edex eede eeee eery ehdd eheh eher ehre epee eper eph- eppp eppy eprp epxp epyx er-x erde ered erer erpe erre erye eryx exed exer exh- expr exrx exxy eyed eyer eyey eype eypx eyre eyry eyyr hdyd hedd hede hedp hedy heed heep heer hehe hepe hepp herd here herp herr hery hex- hexe heye heyh heyr hhex hhhh hpdh hppe hree hrpp hydd hyde hydr hyer hyhe hyp- hype hyph hypy hyrd hyre pdpr ped- pede peed peep peer pehe pehr pepd pepe per- perd pere perh perp perr pery peyr phe- phex phey phrr pper pppd pppp ppye pre- pred pree prep prex prey prpd prrd pyde pyed pyep pype pypy pyr- pyre pyry rder redd rede redh redr redx redy reed reep rehe repe repp repr repy rerd rere rery rexx reyd reye rhee rhex rhyd rhye rpdp rred rrrr ryde rydy ryeh rype x-ed xeer xer- xexe xhhp xper xrep xxxx xxxy xyr- ydee ydre yedd yede yeed yeep yeer yehe yehr yepd yepe yepp yerd yere yerr yery yeye yeyr yhed yher yhyd yyyy