eeee eefe eery effi effy eiei eier eipr eire eiry epee eper epi- epie epip eppp eppy eprp erei erer erie eriu erpe erre erur erye euer eufi eur- eure eury eyer eyey eyfi eyir eype eyre eyry eyup eyyr feer fefe feff fefi feie feir fere ferr feru fery feyr ffee ffff ffii ffrr fief fier fife fiff fifi fiii fipp fire firy fprf free frei frep frey frie frip frue frye fuff fufu fuir fur- fure furi furr fury fuyu fyfe fyfi fyre fyry ieie iere ieri ifer iffy ifrf ifri iiie iiii iipf iper ipie ippf ippr ippy ipri ipur iree irer irfe irfu iri- irie irip iriy irpe irre irri iuef iuiu iupp iyer iyre peep peer peff peip peir pepe pepi per- pere perf peri perp perr peru pery peur peyr pfff pffr pfui piep pier piff piip pipe pipi pipp pipy pire piri pirr piru piry piye pper ppie ppif pppp pprf ppru ppur ppye pre- pree pref prep preu prey pri- prie prif prii prri prue pruf pruu pu-e puer pueu puff puir puiu pupe pupi pupu pupy pur- pure puri purp purr puru pury puy- puyi pyep pype pypy pyr- pyre pyri pyry reef reep refe reff refi refr refu reif reii reir reiu repe repi repp repr repu repy rere reri reru rery reue reuf reup reuu reye rfef rief riep rier rieu rife riff rifu riif ripe ripi ripp ripr rire riri riue riyf rpii rrif rrrr ruer rufe ruff ruif rupe rupp rupy rure ruri rurp ruru ruyi ryfe ryff ryif ryip rype ryue ryyf u-ie u-rp ueir uepi ufer uffe ufip uipi uirr upie uppe uppp uppu uppy upri upup ure- urey urfe urff urfi urie urif uriu urre urri urry urup urur uuri uuuu uyir uyre ye-u yeep yeer yefe yeff yeie yeii yeir yepe yepp yere yeri yerr yery yeue yeye yeyi yeyr yiff yipe yire yirr ypir yuer yuff yufu yuie yupi yure yuri yury yuye yuyu yyfe yyff yyyy