i-pin iiiii inini inio inio- inion inipi iono- ioooi ioooo ipini ippon n-p-n niiip ninon ninpo niono niopo nipin nippo nnooo no-ip no-no no-op nonin nonio nonni nonno nonop nowin nowon oino- oinoi onin onion onnow onoon onpop ooioo oonin ooooo opio- opnin oppin oppon p-n-p pinin pinn- pinni pinno pinon pippi pippo po-on po-po ponin ponni poopo popin popoi popon popop popow poppi poppo powin powow wi-wi winow wo-ni wowio wowow ww-ii wwiii wwwww