iiiii iiris iisir ioooi ioooo iorio ipsi- ipsos irios iris- iriss irori irssi is-is isios isiro isisi issor ixopo ooioo ooooo oopsi opio- opir oppos opsis oroix oropi orosi oroso orris orsis ososo ospis ossi- ossip ossis ossos oxxio p-o-x piiri piisi pipis pippi pippo pipri pirix piros pirri pirro pissi pixis po-po poopo poops poori poors popis popoi popop popos poppi poppo poro- poroi poros porri porro posio posip posix posri pppox ppxii priis prior priss proix proor prop- propp propr props pros- proso pross proxi psor- ripio risps risso rissp rixoi ro-ro roops roosi ropos rosis rossi rosso rosss roxio rprop rrsps s-iii s-o-r sipoo sipos sippi sippo sipsi sirio siris sirop siror siros sirsi sisis sisor sissi so-so soirs soori soosi sopor soppo sorio soror soros sorso soss- sossi spir- spiro spirr spiss spoor spor- spori sporo spors sposi sposo sssss x-ris xoops xorro xoxox xxiii xxxii xxxix