h-ii hhhh hhip hihi hiho hinn hino hipo hipp hiyo hnny hnoi hohn hoho hoip honi hono hony hoon hoop hopi hopo hopp hopy hoyi hyo- hyon hyp- hyph hypo hypy i-no ihop iiii iiio iino iioi iioo iiop inni inno inny ino- inoi inon inp- inpi inpp inyo ioii ioio ioni ionn iono iooi iooo ipin ipoh ipop ippo ippy n-ii nhnn nhon nhpi niip ninh nini nino nioh nion nioo niyi nnnn nnpi nohn noho noin noio non- noni nonn nono noo- noon nooo noop noph noyo npin nyny nyon ohhi ohho ohio ohno ohoh ohyo oiii oion onni onno onon onoy ooho oooh oooo ophi opii opin opio opo- opon oppi oppo oppy oyon phi- phin phip phno phoh phon phoo piip pini pinn pino pinp piny pion pipi pipo pipp pipy piyo pnin pnon pnpo pnpp poin poio poni pono ponp pony pooh poon poop pop- popi popo popp popy poyn poyo pphi ppih pppn pppo pppp pyin pyn- pyo- pyon pypy yhon ynoh ynon yohn yoho yoni yono yoon yoop yopo yopy yoyn yoyo yyyy