-hou eeee eero eery eheh eher eheu ehre eore epee eper eph- epor eppo eppp eppy epro eprp erer erhu eroe eroo erpe erre erro eruh erur erye euer eur- eure euro eury eyer eyey eype eyre eyry eyup eyyr heep heer hehe heho heor heou hepe hepp hepu here hero herp herr heru hery heue heur heye heyh heyr hhhh hoer hoey hohe hoho hooe hoop hoor hope hopo hopp hopy hore horo horr hory houe houp hour hoye hppe hpue hree hrpp huer huey huhu huor hupe hupp hure huro hurr huru hury huye huyr hyer hyhe hyo- hyp- hype hyph hypo hypy hyre o-eo oere oeye oeyo ohee oher ohey ohho ohoh ohre ohye ohyo ooer ooho oooh oooo oore oory opep oper opo- opor oppo oppy opry opye ore- oreh oreo orer orey orhe oro- oroe oror oroy orpe orph orro orry orup ouer oupe ouph our- oure ouro ouu- ouyr oyee oyer oyeu oyou oyre peep peer pehe peho pehr peor peou pepe pepo per- pere perh pero perp perr peru pery peur peyo peyr phe- phey phoh phoo phrr poer poey pooh poop poor pop- pope popo popp popy pore poro porr pory poup pour pouy poyo poyr pper pppo pppp ppru ppur ppye pre- pree prep preu prey pro- proe proo prop prou prue pruu pu-e pueo puer pueu puoy pupe pupu pupy pur- pure puro purp purr puru pury puy- puyo pyep pyhu pyo- pype pypy pyr- pyre pyro pyry reep rehe reop reou repe repo repp repr repu repy rere rero reru rery reue reup reuu reye rhee rheo rhoh rhue rhye roer roey rohe rohr rohu rohy roop roor rope ropo ropy rore roro roru rory roue rouh roup rouy roye rpho rpoe rrrr ruer ruhe ruhh ruhr ruoy rupe rupp rupy rure ruro rurp ruru ryeh ryoh rype ryue u-rp uher uhoh uhry uhuh uhup uor- uore upor uppe uppp uppu uppy upup ure- ureh urey urho uro- uroo urpo urre urrh urry urup urur uuuu uyre ye-u yeep yeer yehe yehr yehu yeoh yepe yepp yere yero yerr yery yeue yeye yeyo yeyr yher yhou yohe yoho yoop yopo yopy yore yoro yory youe youp your yoye yoyo yrho yueh yuer yure yury yuye yuyu yyyy