i-pin iiiii inini inio inio- inion inipi innis insin inspo iono- ioooi ioooo ipini ippon ipsi- ipsos is-is isios isisi isnos isoon n-p-n niiip ninon ninos ninpo niono niopo niosi nipin nipos nippo nisin nisos nnooo no-ip no-no no-op nonin nonio nonis nonni nonno nonop nonos noons nosin nosip noso- noson npins nsnps oino- oinoi oisin oison onin onion onoon onpop ooioo oonin ooooo oopsi opio- opnin oppin oppon oppos opsin opsis opson osini osino ososo ospis ossi- ossip ossis ossos p-n-p piisi pinin pinn- pinni pinno pinon pions pipis pippi pippo pisin pison pissi po-on po-po poins ponin ponni ponos ponso poons poopo poops popin popis popoi popon popop popos poppi poppo posio posip possn psion s-iii si-in sinio sinis sinni sinno sino- sinon sinop sinpo sioni sions sipon sipoo sipos sippi sippo sipsi sisis sison sissi snipp snips snoop snops so-so soini soins soni- sonin sonni sono- sonop sonos soons soosi soppo sosin sosno soss- sossi spin- spino spins spion spiss spoon sposi sposo ssion sssss