gggg ggrn gnoo gnrr gogo gon- gong gonn gono gonu goog goon goor gorg gorn goro gorr gou- goug goun gour grog gron groo gror grou grov grrr grug grun grur gugg gugu gung gunn gurg gurn guro gurr guru gvvv ngon ngor ngou ngur nguu nngn nnnn nogg nogo non- nong nonn nono nonu noo- noon nooo noor noov nor- norg norn noro norr norv noun nour nov- novo nron nung nunn nuno nuon nurn nurr nuru nurv nuvo ogog ogon ogou ogro ogun ongo ongu onno onon onor onur oooo orgn orgo orno oro- oron oror orro orvr oun- oung our- ourn ouro ouu- ovo- ovon ovoo rogg rogo rong rono roog roon roor roro roru roun rovo rrrr rrun rugg rung runn runo ruro ruru ruun ruvu uggo ugro ugur uguu ungo ungu unno unon unov unro uor- uovo urgu uro- uroo urun urur uuno uuuu uvvu vogu vonn voog voor vor- voro voru voun vour vrnn vron vugg vugo vuno vurg vvog vvvv