gggg gigg gigi gigo giog gioi girg giri giro girr girt gito gogi gogo goit goog gooi goor goot gorg gori goro gorr gort goti goto gott grig grit grog groi groo gror grot grrr i-go igoo igor igot igri iiii iiio iiit iioi iioo iitr iitt iogt ioii ioio ioit iooi iooo iorg iori ioto iri- irig irio irri irti itgo itoi itoo itor itri itto oggi ogog ogoi ogri ogro oigo oiii oirt oiti oooo oort orgo ori- orig orio orit oro- oror orot orri orro orto otit oto- otog otoo otor otro otti otto rgit rgtr rigg rigi rigo riot riri riti rito ritt rogg rogi rogo roig roio roir roit roog rooi roor root rori roro rort rotg roti roto rotr rott rrrr tigi tigr tiit tiri tiro tirr titi tito titt togo togr togt toit toor toot torg tori toro torr tort toti toto totr tott tri- trig trio trit trog troi troo trot trtr tttt