i-pin iiiii iiuni inini inio inio- inion inipi inniu inonu iono- ioooi ioooo ipini ippon iunno n-p-n niiip ninon ninpo niono niopo nipin nippo nippu nipup nnooo no-ip no-no no-op non-u nonin nonio nonni nonno nonop noonu nopun nouni nu-nu nunni nunon nunun oino- oinoi onin onion onoon onpop ooioo oonin ooooo opio- opnin oppin oppon p-n-p pinin pinn- pinni pinno pinon pinup pippi pippo po-on po-po poipu ponin ponni ponnu ponup poopo popin popoi popon popop poppi poppo popup punoi punon pupin puppo u-n-i u-nii u-pop unini uninn union unipi unnun unpin uppon uuuuu