eeee eero eery eore epee eper epor eppo eppp eppy epro eprp erer erev eroe eroo erpe erre erro erur eruv erve erye euer eur- eure euro eury euvy ever evey evoe evoo evop evre evry eyer eyey eype eyre eyry eyup eyyr o-eo oere oevp oeye oeyo ooer oooo oore oory opep oper opo- opor oppo oppy opry opye ore- oreo orer orey oro- oroe oror oroy orpe orro orry orup orve orvr ouer oupe oupv our- oure ouro ouu- ouyr ovee over ovey ovo- ovoo ovpp ovre oyee oyer oyeu oyou oyre peep peer peev peor peou pepe pepo per- pere pero perp perr peru perv pery peur pevy peyo peyr poer poey poop poor pop- pope popo popp popy pore poro porr pory poup pour pouy povo poyo poyr pper pppo pppp ppru ppur ppye pre- pree prep preu prev prey pro- proe proo prop prou prov prue pruu pu-e pueo puer pueu puoy pupe pupu pupy pur- pure puro purp purr puru pury puy- puyo pyep pyo- pype pypy pyr- pyre pyro pyry reep reev reop reou repe repo repp repr repu repy rere rero reru rery reue reup reuu reve revo revp revy reye roer roev roey roop roor rope ropo ropy rore roro roru rory roue roup rouy rove rovo roye rpoe rrrr ruer ruoy rupe rupp rupy rure ruro rurp ruru ruve ruvu rver rype ryue u-rp uor- uore uovo upor uppe uppp uppu uppy upup ure- urey uro- uroo urpo urre urry urup urur urve uuuu uver uvvu uyre veep veer veor vepe vepr ver- vere vero very veur veve vevo vevy veye veyr voer voeu voor vor- vore voro voru vory voue vour voye vpro vreo vurp vver vvvv vyer vyre vyue ye-u yeep yeer yepe yepp yere yero yerr yery yeue yeve yeye yeyo yeyr yoop yopo yopy yore yoro yory youe youp your yove yoye yoyo yuer yure yury yuye yuyu yver yvor yyyy