-ing gggg ggpo ggrn gigg gigi gign gigo ging gini ginn gino giog gioi gion giop gipi gipp girg giri girn giro girr gnin gnip gnoo gnrr gogi gogo goin goip gon- gong goni gonn gono goog gooi goon goop goor gopi gopo gorg gori gorn goro gorp gorr gpgp gpip gprp grig grin grip grni grog groi gron groo grop gror grrr i-go i-no igni igno igon igoo igor igri iiii iiio iino iioi iioo iiop ingo inig inni inno innr ino- inoi inon inor inp- inpi inpp inri inro ioii ioio ioni ionn iono iooi iooo iorg iori ipin ipop ippo ippr ipri iri- irig irin irio irip iron irop irri n-ii ngio ngon ngor ngri nigg nigo niip niir ning nini nino niog nion nioo nipr niro nngn nnnn nnpi nnpr nogg nogo noin noio noir non- nong noni nonn nono noo- noon nooo noop noor nor- norg nori norn noro norr npin npri nron nrpn oggi ogin ogni ogog ogoi ogon ogri ogro oigo oiii oion ongi ongo onir onni onno onon onor onpg oooo opii opin opio opng opo- opon opor oppi oppo orgn orgo ori- orig orin orio orni orno oro- oron oror orpi orri orro pigg pign pigo pigp piip ping pini pinn pino pinp pion pipi pipo pipp pirg piri pirn piro pirr pnin pnon pnpo pnpp pnro pogg pogo poin poio pong poni pono ponp poon poop poor pop- popi popo popp porg pori porn poro porr ppgi ppig pppn pppo pppp pri- prig prii prin prnp pro- prog pron proo prop prri rigg rigi rigo riin ring rinn rino rion ripi ripp ripr riri rnin rogg rogi rogo roig roin roio roir rong roni rono roog rooi roon roop roor ropo rori roro rpii rpon rppn rrrr