eeeee eeler eener eepee elele elene ellel ellen eller ellul elpee elper elren elulu eluru enlen enper enpeu enure enurn epeen epene epure ereen erere erlen ernen ernle erpel euell eulen euler eupen eurel eurre leell leere lelep leleu lelle lenne lepel leper leppe lepre leren lerer lerne leupp lueen luen lulle lulul lunel lunne luper luppe lupul luren lurer lurne lurue lurun lurup n-p-n neele neelu neere nelle nellu neper neple neppe neree nerre nerul nerur neuen neuer neueu neune neur- neure neurl 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 pleen pleep plene plupp plurn preen 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 reene reepe reere relee relue renee rener renne repel repen reple reppe repun rere- reree rerun reuel reuen reuer reule reune rnpep ruele ruell ruere rueun ruler runer runne runup rupee rupel ruper ruule uelen ulene ullur ulpur ululu uluru unerp unnun unnur unpen unpeu unrep unrun unurn upenn uppen upper uprun urelu urupe uuuuu