eeeee eeler eener eepee efere effer efren efuru elele elene elfen ellel ellen eller ellul elpee elper elren elulu eluru enfer enfeu enlen enper enpeu enuff enure enurn epeen epene epure ereen erere erlen ernen ernle erpel euell eulen euler eupen eurel eurre feele feeln feere felle felup fener feneu fenne ferel feren ferle ferr- ferre feuer feule fleen fleer flene flenu flere fleur fluff flure flurn flurr freel freep freer frere freur fu-fu fulen fulle fullf fulup funel funen furel furen leell leere lefeu leffe leful lelep leleu lelle lenne lepel leper leppe lepre leren lerer lerne leupp lueen luen lufre lulle lulul lunel lunne luper luppe lupul luren lurer lurne lurue lurun lurup n-p-n neele neelu neere nefen nefer neffe nefre nelle nellu neper neple neppe neree nerre nerul nerur neuen neuer neueu neune neur- neure neurl nfler nu-nu nuell nulle nunun nupen nuprl nupur nure- nurlu nurun p-n-p p-rep peele peell peene peere peerl pelee peler pelle pene- pener penne penre penup penur pepee pepel peple peppe pepup perel peren perer perle perne perre perun perur peule peure pfuel pleen pleep plene pluff plupp plurn preef preen preff prell prelp prene prepl prepn pruen prun- prune puler pull- pulle pullu punee punel punne puple puppe puree purel puren purer purle purre purul re-up reefe reene reepe reere refel refen refer reffe refne relee relue renee rener renfe renne repel repen reple reppe repun rere- reree rerun reuel reuen reuer reule reune rnpep rperf ruele ruell ruere rueun ruffe ruler runer runne runup rupee rupel ruper ruule uelen uelfe ufere ulene ullur ulpur ululu uluru unerp unfun unfur unnun unnur unpen unpeu unref unrep unrun unurn upenn uppen upper uprun urelu urupe uuuuu