e-one eeeee eenie eepee eieio einen einin eixen enion ennin ennio enone enope enpo eoxin epeen epene epine epion epone epoxi eppie exene exine exion exxon i-pin iepe iiiee iiiii ineni inini inio inio- inion inipi innie inone inpen inpex ionex iono- ioooi ioooo ipini ippee ippei ippen ippon ixion ixopo n-p-n nenni nenno neope neppe nexen nexin nexoe nexon niene niepe niiip ninee nineo ninon ninox ninpo nione niono niopo nipin nippo nixie nixon nnooo no-ip no-no no-op nonin nonio nonne nonni nonno nonop noone nopep nopie noppe noxon oenin oeno- oenoe oeppo oino- oinoi one-x onein onene oneno oneon oneop onin onine onion onne- onnen onone onoon onpop onxeo ooioo oonin ooooo openx opepe opine opio- opnin opone oppie oppin oppon oxine oxxio p-n-p p-o-x peein peene peine peion peixe pene- penex penii penin penix penne penni penon peone pepee pepin pepoi pepon peppe peppi pexip piein pieni pieno pinin pinn- pinne pinni pinno pinon pione pipex pippi pippo pixen pixie pneo- po-on po-po poeni poine ponin ponne ponni poope poopo popex popin popoi popon popop poppe poppi poppo poxon pppox ppxii x-one xenin xenix xeno- xenon xepon xexex xinpi xonix xonox xoxox xxiii xxxii xxxix