hhhhh hi-hi hihos hiisi hipo- hipop hipp- hippi hippo hipps hishu hisis hisiu hisop hispo hissi hisss ho-ho ho-oh hohos hoiss hoops hoosh hopis hoppo hopps hopup hoshi hosho hosoi hospi hosps hossu hou-i houss huhuh huhus huish hushi husos ihops iiiii ioooi ioooo iphis ipsi- ipsos ipsus is-is ishii ishis isios isisi ispup isshi issou issus issuu isuus iupps oh-oh oh-so ohiou ohohs ohuus oishi ooioo ooooh ooooo oopsi ophi- ophio ophis opihi opio- opius opoho oppos opsis opusi oshio oship ososo ospis ossi- ossip ossis ossos osusu ouihi ouphs phiph phish phos- phoss piisi piisu pious pipis pippi pippo pishu pissi piusi po-po pohio poipu poohs poopo poops popis popoi popop popos poppi poppo popup posho posio posip poush pouss psoup puhoi puppo push- s-iii shhhh shiho shipp ships shish shiso shooi shoop shoos shopi shops shosh shosi shoup shous shu-i shuis shush sihui sipho sipoo sipos sippi sippo sipsi sisis sissi sissu siusi so-ho so-so sohio sohos soosi sophi sopho sophs soppo sopup soshi soshu soss- sossi sosui sosus souho soups sous- sphos spiss sposh sposi sposo ssssh sssss suhoi supps supsi sushi susso susus u-pop uh-oh uh-uh uhhoh uhhuh uhohs uhuhs uispp upshi ushio uship ushis ushus uspis ususi uusis uuuuu