code: @Override
    public List<IN> classify(List<IN> document) {
      if (flags.useSequences) {
        classifySeq(document);
      } else {
        classifyNoSeq(document);
      }
      return document;
    }
docs: Classify a {@link List} of {@link CoreLabel}s.
  
  @param document A {@link List} of {@link CoreLabel}s
  to be classified.