eeee eero eery eore erer eroe eroo erre erro erur erye euer eur- eure euro eury eyer eyey eyre eyry eyyr o-eo oere oeye oeyo ooer oooo oore oory ore- oreo orer orey oro- oroe oror oroy orro orry ouer our- oure ouro ouu- ouyr oyee oyer oyeu oyou oyre reou rere rero reru rery reue reuu reye roer roey roor rore roro roru rory roue rouy roye rrrr ruer ruoy rure ruro ruru ryue uor- uore ure- urey uro- uroo urre urry urur uuuu uyre ye-u yeer yere yero yerr yery yeue yeye yeyo yeyr yore yoro yory youe your yoye yoyo yuer yure yury yuye yuyu yyyy