-ing ffff ffii fiff fifi fifo figg figo fiii fing fini finn fino fion fixx fofo fogg fogi fogn fogo foin foix fong fono foof foon foxx gfox ggfg gggg giff gigg gigi gign gigo ging gini ginn gino giog gioi gion gnin gnof gnoo goff gogi gogo goif goin gon- gong goni gonn gono goof goog gooi goon i-go i-no ifni ifno igni igno igon igoo iiii iiio iino iioi iioo infi info ingo inig inni inno ino- inoi inon inox ioii ioio ioni ionn iono ioof iooi iooo ixxi n-ii nfff nfix nfon ngio ngon niff nigg nigo ning nini nino niog nion nioo nixi nngn nnnn nofi nofx nogg nogo noif noin noio noix non- nong noni nonn nono nonx noo- noon nooo off- offo ofgo ofno oggi ogin ogni ogog ogoi ogon oigo oiii oion ongi ongo onix onni onno onon ooff oooo oxi- oxo- oxof oxon oxox oxxo x-fi xfig xfin xggi xiii xing xion xixi xong xoxo xxii xxix xxxi xxxo xxxx