### Question:
PalladianNer extends TrainableNamedEntityRecognizer implements ClassifyingTagger { Set<String> buildCaseDictionary(String text) { LOGGER.info("Building case dictionary"); DictionaryBuilder builder = createDictionaryBuilder(); Iterator<Token> tokens = new WordTokenizer().iterateTokens(text); boolean skip = true; while (tokens.hasNext()) { String token = tokens.next().getValue(); if (skip) { skip = false; } else if (token.matches("[.?!]")) { skip = true; } else { String trimmedToken = token.trim(); if (trimmedToken.length() > 1) { String caseSignature = StringHelper.getCaseSignature(trimmedToken); if (caseSignature.toLowerCase().startsWith("a")) { builder.addDocument(Collections.singleton(trimmedToken.toLowerCase()), caseSignature.substring(0, 1)); } } } } DictionaryModel temp = builder.create(); Set<String> lowerCaseDictionary = new HashSet<>(); for (DictionaryEntry entry : temp) { String token = entry.getTerm(); if (entry.getCategoryEntries().getProbability("a") > 0.5) { lowerCaseDictionary.add(token); } } return lowerCaseDictionary; } 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 testBuildCaseDictionary() { String text = "Despite their shared upbringing and involvement in the Spanish Treason, the conspirators chose not to reveal the plot to him until 14 October 1605, shortly after his father died, and just weeks before the planned explosion. According to his confession, the meeting took place at the home of Tresham's brother-in-law, Lord Stourton, in Clerkenwell."; PalladianNer ner = new PalladianNer(PalladianNerTrainingSettings.Builder.english().create()); Set<String> caseDictionary = ner.buildCaseDictionary(text); assertEquals(33, caseDictionary.size()); assertFalse(caseDictionary.contains("despite")); assertFalse(caseDictionary.contains("according")); assertTrue(caseDictionary.contains("involvement")); }