if (vocabCounter.count(sentence.get(i)) < unknownWordThreshold) {
Sexp word = (downcaseWords ? Symbol.get(sentence.get(i).toString().toLowerCase()) : sentence.get(i)); if (vocabCounter.count(word) < unknownWordThreshold) {
  public SexpList convertUnknownWords(SexpList sentence)    throws RemoteException {    CountsTable vocabCounter = modelCollection.vocabCounter();    int sentLen = sentence.length();    for (int i = 0; i < sentLen; i++) {      if (vocabCounter.count(sentence.get(i)) < unknownWordThreshold) {        Symbol features =          Language.wordFeatures.features(sentence.get(i).symbol(), i==0);        sentence.set(i, features);      }    }    return sentence;  }