i-pin iiiii inini ininy inio inio- inion inipi inopy iono- ioooi ioooo ipini ippon iyiyi n-p-n niiip ninny ninon ninpo niono niopo nipin nippo nippy nnooo no-ip no-no no-op nonin nonio nonni nonno nonny nonop noppy noyon oino- oinoi onin onion onoon onpop onyon ooioo oonin ooooo opio- opnin oppin oppon opypy p-n-p pinin pinn- pinni pinno pinny pinon pinoy pippi pippo pippy po-on po-po ponin ponni ponyo poopo poopy popin popoi popon popop poppi poppo poppy pynn- pynon pypyn yinon yippy ynion yo-yo yopon