private static void testDependencyTree() {
    String testSentence = "Now is the time for all good men to come to the aid of their country.";

    CoreNlpParser parser = new CoreNlpParser();
    List<SemanticGraph> result = parser.getTextDependencyTree(testSentence);
    for (SemanticGraph graph : result) {
      graph.prettyPrint();
    }
  }