dddd ddre dedd dede dedu deed deeg deep deer dege degu depe depp depr der- dere derg derp derr deue deur deux dex- dexe dgeg dgge dgxp dper dppx dprg dred dree dreg drge drue drug drup druu dudd dude dudu duer dugu dupe dure durg duru duur dxdr dxed dxep dxgd dxrd dxre dxrp dxrr dxrx dxue dxur dxxr dxxx edde eddp ede- eder edex edge edru edup edur eede eedu eeee eerg egee eger egge eggp egpd egpe egre epee eper eppp eprp epxp er-x erde ered erer erg- ergg erpe erre erur eude euer euge eur- eure exed exer exge expr exrx gedd gede gedu geed geep geer gege gegg gepe gerd gere geru geue geup gggg gper gpgp gprd gprp gpxe grdx gree greg grep greu grex grrr grue grug grur gude gudu guep guer guge gugg gugu gurd gure gurg gurr guru pdpr ped- pede peed peep peer pegg pegu pepd pepe per- perd pere perg perp perr peru peur pgde pger pgpu pgup pper pppd pppp ppru ppur pre- pred pree preg prep preu prex prpd prrd prud prue pruu pu-e pudu pued puer pueu pugu pupe pupu pur- pure purg purp purr puru puxe rder redd rede redr redu redx reed reep regd rege regr regu repe repp repr repu rerd rere rerg reru reue reup reuu reux rexx rpdp rred rrrr rudd rude rudp rued ruer ruge rugg rupe rupp rurd rure rurp ruru ruud u-rp uder udge udpd ugep ugur uguu uped uppe uppp uppu upup urde urdu ure- ured urex urge urgu urre urup urur uuuu uxue x-ed xeer xer- xexe xper xrep xuxu xxxx