hhhhh hi-hi hihon hinin hipo- hipop hipp- hippi hippo hixon ho-ho ho-oh honno hopin hopon hoppo i-pin iiiii inini inio inio- inion inipi iono- ioooi ioooo ipini ippon ixion ixopo n-p-n nihon niiip ninon ninox ninpo niono niopo nipin nippo nixon nnooo no-ip no-no no-op nohno nonin nonio nonni nonno nonoh nonop noxon oh-oh oino- oinoi onin onion onoon onpop ooioo oonin ooooh ooooo ophi- ophio ophni opihi opio- opnin opoho oppin oppon oxxio p-n-p p-o-x phinn phiph phixx phon- phono pinho pinin pinn- pinni pinno pinon pippi pippo po-on po-po pohio ponin ponni poopo popin popoi popon popop poppi poppo poxon pppox ppxii xinpi xiph- xonix xonox xoxox xxiii xxxii xxxix