code: public void printFirstOrderProbsDocuments(ObjectBank<List<IN>> documents) {
      for (List<IN> doc : documents) {
        printFirstOrderProbsDocument(doc);
        System.out.println();
      }
    }
docs: Takes a {@link List} of documents and prints the likelihood of each
  possible label at each point.
  
  @param documents
  A {@link List} of {@link List} of INs.