-hou ffff fftf fofo fogg fogh fogo foof foot foth foto fott foug fout fuff fufu fugh fugo fugu futo futu ggfg gggg gghg ghug goff gofu gogh gogo goof goog goot goth goto gott gou- gouf goug gout gtfo guff gugg gugh gugu guth guto gutt gutu hhgg hhhh hhof hoff hofu hogg hogh hogo hogu hoho hoof hoot hoth hoto hott hotu houf hout htoh huff hufu hugg hugh hugo huhu huot huth huto hutt hutu off- offh offo offu ofgo oght ogog ogou ohho ohoh ohto ohtu ooff ooho oooh oooo otho oto- otof otog otoh otoo otto ottu ouff ough out- outh outo ouu- tfot thof thog thoo thot thou thug toff tofo toft tofu togh togo togt toho tohu toof tooh toot toth toto tott toug touh tout ttff tttt tuff tufo tuft tufu tugg tugh tugu tuht tuhu tuto tutt tutu tuuo uggo uggt uguu uhoh uhuh uofg uofo utfo utto uttu utug uutf uuuu