eeee eery eiei eier eipr eire eiry epee eper epi- epie epip eppp eppy eprp erei erer erie eriu erpe erre erur erye euer eur- eure eury eyer eyey eyir eype eyre eyry eyup eyyr ieie iere ieri iiie iiii iper ipie ippr ippy ipri ipur iree irer iri- irie irip iriy irpe irre irri iuiu iupp iyer iyre peep peer peip peir pepe pepi per- pere peri perp perr peru pery peur peyr piep pier piip pipe pipi pipp pipy pire piri pirr piru piry piye pper ppie pppp ppru ppur ppye pre- pree prep preu prey pri- prie prii prri prue pruu pu-e puer pueu puir puiu pupe pupi pupu pupy pur- pure puri purp purr puru pury puy- puyi pyep pype pypy pyr- pyre pyri pyry reep reii reir reiu repe repi repp repr repu repy rere reri reru rery reue reup reuu reye riep rier rieu ripe ripi ripp ripr rire riri riue rpii rrrr ruer rupe rupp rupy rure ruri rurp ruru ruyi ryip rype ryue u-ie u-rp ueir uepi uipi uirr upie uppe uppp uppu uppy upri upup ure- urey urie uriu urre urri urry urup urur uuri uuuu uyir uyre ye-u yeep yeer yeie yeii yeir yepe yepp yere yeri yerr yery yeue yeye yeyi yeyr yipe yire yirr ypir yuer yuie yupi yure yuri yury yuye yuyu yyyy