-ing bbbb bbin bbng bgon bgun bibb bibi bibo bigb bigg bign bigo bigu biin bin- bing bini binn bino binu bio- biog bioi bion biou bipp bipu bnib bnin bnpp bobb bobi bobo bobu bogg bogi bogo boi- boii boin boiu bong boni bonn bono bonu boob boog boon boop bopp boun boup bubb bubi bubo bubu bugg bugi bugo buin buiu bunb bung buni bunn buno bunu buon gbbo gbon gggg ggpo gibb gigg gigi gign gigo ging gini ginn gino ginu giog gioi gion giop gipi gipp gnib gnin gnip gnoo gobi gobo gogi gogo goin goip gon- gong goni gonn gono gonu goog gooi goon goop gopi gopo gopu gou- goug goun goup gpgp gpip gubb gubi gubu gugb gugg gugi gugu guib guin gung gunn i-go i-no ibon igbo igni igno ignu igon igoo iiii iiio iino iioi iioo iiop inbo ingo inig inni inno innu ino- inoi inon inou inp- inpi inpp inui inun inup iobi ioii ioio ioni ionn iono iooi iooo ioug ioun ipin ipop ippo iuiu iuno iupp n-ii n-up nbbo nbpp ngio ngon ngou nguu nibi nibo nigg nigo niip niiu ning nini nino niog nion nioo niou nngn nnnn nnpi nobi nobo nobu nogg nogo noib noin noio non- nong noni nonn nono nonu noo- noob noon nooo noop noun noup npin nubi nuin nung nunn nuno nuon obbo obin oboi obon ogb oggi ogin ogni ogog ogoi ogon ogou ogpu ogui ogun oigo oiii oion ongi ongo ongu onni onno onon onpg onpu onup oobi oooo opii opin opio opng opo- opon oppi oppo ouii ouin oun- oung ouu- pgib pgou pgpu pgup pibb pibi pigb pigg pign pigo pigp pigu piip ping pini pinn pino pinp pinu piob pion pipi pipo pipp pnin pnon pnpo pnpp pnup pobo pogg pogo poin poio pong poni pono ponp poon poop pop- popi popo popp poui poun poup ppgi ppib ppig pppn pppo pppp pubu pugo pugu puig puin puiu pung puno punu pupi pupu ubbi ubbo ubii ubon uggo ugni uguu uipi ungo ungp ungu uni- unii unin unio unni unno unon unop upgo upin upnp upon uppp uppu upup uuni uuno uuuu