i-pin iiiii inini ininy inio inio- inion inipi inopy iono- ioooi ioooo ipini ippon ixion ixopo iyiyi n-p-n niiip ninny ninon ninox ninpo niono niopo nipin nippo nippy nixon nnooo no-ip no-no no-op nonin nonio nonni nonno nonny nonop noppy noxon noynx noyon npxpy oino- oinoi onin onion onoon onpop onyon onyxx ooioo oonin ooooo opio- opnin oppin oppon opypy oxxio p-n-p p-o-x pinin pinn- pinni pinno pinny pinon pinoy piony pippi pippo pippy po-on po-po ponin ponni ponyo poopo poopy popin popoi popon popop poppi poppo poppy poxon pppox ppxii pynn- pynon pypyn xinpi xinyi xiyon xonix xonox xoxox xxiii xxxii xxxix yinon yinxi yippy ynion yo-yo yopon