Task: Question Answering
Input (English): We have shown that neural network-based models can outperform feature-based models with wide margins, and we conducted an ablation study to show that contextualized representation learning can boost performance of NN models. 
 Question: What conclusions do the authors draw from their detailed analyses?
Output (English): neural network-based models can outperform feature-based models with wide margins contextualized representation learning can boost performance of NN models