Task: Question Answering
Input (English): More specifically, we explore three regularization terms to address the problem: (1) a regularization term associated with neutral features; (2) the maximum entropy of class distribution regularization term; and (3) the KL divergence between reference and predicted class distribution. 
 Question: What are the three regularization terms?
Output (English): a regularization term associated with neutral features the maximum entropy of class distribution regularization term the KL divergence between reference and predicted class distribution