hhhhh hi-hi hihon hinin hinou hipo- hipop hipp- hippi hippo ho-ho ho-oh honno hopin hopon hoppo hopup hou-i houin houni huhuh hunin i-pin iiiii iiuni inini inio inio- inion inipi inniu inonu iono- ioooi ioooo ipini ippon iunno n-p-n nihon niiip ninon ninpo niono niopo nipin nippo nippu nipup nnooo no-ip no-no no-op nohno nohup non-u nonin nonio nonni nonno nonoh nonop noonu nopun nouni nu-nu nuhuh nunni nunon nunun oh-oh ohiou oino- oinoi onin onion onoon onpop ooioo oonin ooooh ooooo ophi- ophio ophni opihi opio- opnin opoho oppin oppon ouihi p-n-p phinn phiph phon- phono pinho pinin pinn- pinni pinno pinon pinup pippi pippo po-on po-po pohio poipu ponin ponni ponnu ponup poopo popin popoi popon popop poppi poppo popup pouni puhoi punoi punon pupin puppo u-n-i u-nii u-pop uh-oh uh-uh uhhoh uhhuh uhnin unhip unini uninn union unipi unnun unpin uppon uuuuu