public void TestToString() {
var wn1 = new WordNode("Eat", PartOfSpeechTag.Verb);
var wn2 = new WordNode("More", PartOfSpeechTag.NounModifier);
var wn3 = new WordNode("Chicken", PartOfSpeechTag.Noun);
var words = new WordNode[] {wn1, wn2, wn3};
PhraseNode pn = new PhraseNode(words, Location.Name, true);
string expected = string.Format("{0} {1} {2}", wn1, wn2, wn3);
Assert.AreEqual(expected, pn.ToString());
}