POLYOLEFIN

ef el en fe if in li lo ne no oe of oi on op oy pe pi ye yo

elf ell eon fen fey fie fil fin fly foe fon fop foy ill ion lei ley lie lin lip loo lop lye nil nip noo oil ole one ono ope pen pie pin ply poi pol poo pye yen yep yin yip yon

enol fell file fill filo fine fino fley flip floe flop foil foin fool illy info inly leno lief lien life lilo lily line lino liny lion lipe loin lone loof loon loop lope neif nill noel noil nolo nope oily oleo olio only open pein pelf peon pile pill pily pine piny pion plie ploy pole poll polo poly pone pony poof pool poon pyin yell yelp yill yipe yoni