-ing gggg ggpo gigg gigi gign gigo ging gini ginn gino giog gioi gion giop gipi gipp gnin gnip gnoo gogi gogo goin goip gon- gong goni gonn gono goog gooi goon goop gopi gopo gpgp gpip i-go i-no igni igno igon igoo iiii iiio iino iioi iioo iiop ingo inig inni inno ino- inoi inon inox inp- inpi inpp ioii ioio ioni ionn iono iooi iooo ipin ipix ipop ippo ixxi n-ii ngio ngon nigg nigo niip ning nini nino niog nion nioo nixi nngn nnnn nnpi nogg nogo noin noio noix non- nong noni nonn nono nonx noo- noon nooo noop npin oggi ogin ogni ogog ogoi ogon oigo oiii oion ongi ongo onix onni onno onon onpg oooo opii opin opio opng opo- opon oppi oppo oxi- oxo- oxon oxox oxxo pigg pign pigo pigp piip ping pini pinn pino pinp pion pipi pipo pipp pixo pixx pnin pnon pnpo pnpp pogg pogo poin poio poix pong poni pono ponp poon poop pop- popi popo popp ppgi ppig pppn pppo pppp xggi xiii xing xion xixi xong xoxo xpin xxii xxix xxxi xxxo xxxx