hhhhh hi-hi hihos hiisi hipo- hipop hipp- hippi hippo hipps hiroi hiroo hiros hirsh hisis hisop hisor hispo hissi hisss ho-ho ho-oh hohos hoiss hoops hoori hoors hoosh hopis hoppo hopps horii horio horos horro hoshi hosho hosoi hospi hosps hrhis hross ihops iiiii iiris iisir ioooi ioooo iorio iphis ipsi- ipsos irios iris- irish iriss irori irshi irssi is-is ishii ishis isios isiro isisi isshi issor oh-oh oh-so ohohs ohrio oishi ooioo ooooh ooooo oopsi ophi- ophio ophir ophis opihi opio- opir opoho oppos opsis oropi orosh orosi oroso orris orsis oshio oship ososo ospis ossi- ossip ossis ossos phhir phiph phiri phish phos- phoss phrop piiri piisi pipis pippi pippo pipri pirho piros pirri pirro pissi po-po pohio poohs poopo poops poori poors popis popoi popop popos poppi poppo poro- poroi poros porri porro posho posio posip posri priis prior priss proor prop- propp propr props pros- prosh proso pross psor- ripio rishi risps rissh risso rissp ro-ro rohri roohi roops roosi ropos roshi rosis rossi rosso rosss rprop rrsps s-iii s-o-r shhhh shiho shihr shipp ships shiri shiro shirp shirr shish shiso shoir shooi shoop shoor shoos shopi shops shoro shorr shors shosh shosi shprh shrip shris sihor sihri sihrs sipho sipoo sipos sippi sippo sipsi sirih sirio siris sirop siror siros sirsi sisis sisor sissi so-ho so-so sohio sohos soirs soori soosi sophi sopho sophs sopor soppo sorio soror soros sorso soshi soss- sossi sphos spir- spiro spirr spiss spohr spoor spor- spori sporo spors sposh sposi sposo ssssh sssss