Task: Question Answering
Input (English): Our unsupervised ranking model outperforms the supervised IMS system by 1.02% on the CoNLL F1 score, and achieves competitive performance with the latent tree model. Moreover, our approach considerably narrows the gap to other supervised systems listed in Table 3 . 
 Question: Is the model presented in the paper state of the art?
Output (English): No, supervised models perform better for this task.