gggg ggpo ggrn gnoo gnrr gogo gon- gong gonn gono gonu goog goon goop goor gopo gopu gorg gorn goro gorp gorr gou- goug goun goup gour gpgp gprp grog gron groo grop gror grou grrr grug grun grur gugg gugu gung gunn gurg gurn guro gurr guru n-up ngon ngor ngou ngur nguu nngn nnnn nnpr nogg nogo non- nong nonn nono nonu noo- noon nooo noop noor nor- norg norn noro norr noun noup nour nron nrpn nung nunn nuno nuon nurn nurp nurr nuru ogog ogon ogou ogpu ogro ogun ongo ongu onno onon onor onpg onpu onup onur oooo opng opo- opon opor oppo orgn orgo orno oro- oron oror orro orup oun- oung our- ourn ouro ouu- pgou pgpu pgup pnon pnpo pnpp pnro pnup pogg pogo pong pono ponp poon poop poor pop- popo popp porg porn poro porr poun poup pour pppn pppo pppp ppru ppur prnp pro- prog pron proo prop prou pruu pugo pugu pung puno punu pupu pur- purg puro purp purr puru rogg rogo rong rono roog roon roop roor ropo roro roru roun roup rpon rppn rrrr rrun rugg rung runn runo rupp ruro rurp ruru ruun u-rp uggo ugro ugur uguu ungo ungp ungu unno unon unop unro uor- upgo upnp upon upor uppp uppu upup urgu uro- uroo urpo urun urup urur uuno uuuu