Task: Question Answering
Input (English): oss analysis. To conduct a more thorough evaluation, we further investigate model behaviours in terms of both reconstruc 
 Question: How do they evaluate generated text quality?
Output (English): Loss analysis. To conduct a more thorough evaluation, we further investigate model behaviours in terms of both reconstruction loss and KL loss, as shown in Figure FIGREF14. These plots were obtained based on the E2E training set using the inputless setting.