eeeee eeler eepee efere effer efuru elele ellel eller ellul elpee elper elulu eluru epure erere erpel euell euler eurel eurre feele feere felle felup ferel ferle ferr- ferre feuer feule fleer flere fleur fluff flure flurr freel freep freer frere freur fu-fu fulle fullf fulup furel leell leere lefeu leffe leful lelep leleu lelle lepel leper leppe lepre lerer leupp lufre lulle lulul luper luppe lupul lurer lurue lurup p-rep peele peell peere peerl pelee peler pelle pepee pepel peple peppe pepup perel perer perle perre perur peule peure pfuel pleep pluff plupp preef preff prell prelp prepl puler pull- pulle pullu puple puppe puree purel purer purle purre purul re-up reefe reepe reere refel refer reffe relee relue repel reple reppe rere- reree reuel reuer reule rperf ruele ruell ruere ruffe ruler rupee rupel ruper ruule uelfe ufere ullur ulpur ululu uluru upper urelu urupe uuuuu