e-one eeeee egene egeon eggen eggng eggon egone enego engen enone exene exxon gegge genex genge gengo geno- geong go-go go-on go-oo gogen gogne gogon gonen gongo gonne gonnn gonno gono- googe goone goong negon nengo nenno nexen nexoe nexon ngege ngong nnooo no-go no-no nonne nonno noone noxon oeno- oenoe ogene ognen ognon ogogo ogone one-x onene oneno oneon ongee ongon onne- onnen onone onoon onxeo ooooo x-one xeno- xenon xexex xonox xoxox