### Question:
PalladianNer extends TrainableNamedEntityRecognizer implements ClassifyingTagger { static boolean isDateFragment(String value) { for (String dateFragment : RegExp.DATE_FRAGMENTS) { if (StringUtils.isBlank(value.replaceAll(dateFragment, " "))) { return true; } } return false; } PalladianNer(PalladianNerTrainingSettings trainingSettings);  PalladianNer(String modelFilePath); @Override String getModelFileEnding(); @Override boolean setsModelFileEndingAutomatically(); @Override boolean loadModel(String configModelFilePath); @Override boolean train(String trainingFilePath, String modelFilePath); void train(String trainingFilePath, List<Annotation> annotations, String modelFilePath); void setEntityDictionary(String filePath); void train(List<Annotation> annotations, String modelFilePath); @Override List<ClassifiedAnnotation> getAnnotations(String inputText); PalladianNerModel getModel(); @Override String getName(); PalladianNerTaggingSettings getTaggingSettings();  }### Answer:
@Test public void testContainsDateFragment() { boolean result = PalladianNer.isDateFragment("June John Hiatt"); assertFalse(result); result = PalladianNer.isDateFragment("January"); assertTrue(result); result = PalladianNer.isDateFragment("JANUARY"); assertTrue(result); result = PalladianNer.isDateFragment("January "); assertTrue(result); }