In this task, you will be presented with a context from an academic paper and a question separated with a 
. You have to answer the question based on the context.

[EX Q]: Various multilingual extensions of NMT have already been proposed in the literature. The authors of BIBREF18 , BIBREF19 apply multitask learning to train models for multiple languages. Zoph and Knight BIBREF20 propose a multi-source model and BIBREF21 introduces a character-level encoder that is shared across several source languages. In our setup, we will follow the main idea proposed by Johnson et al. BIBREF22 . The authors of that paper suggest a simple addition by means of a language flag on the source language side (see Figure 2 ) to indicate the target language that needs to be produced by the decoder. This flag will be mapped on a dense vector representation and can be used to trigger the generation of the selected language. The authors of the paper argue that the model enables transfer learning and supports the translation between languages that are not explicitly available in training. 
 Question: What neural machine translation models can learn in terms of transfer learning?
[EX A]: Multilingual Neural Machine Translation Models

[EX Q]: However, as shown in Figure 1 , to assess the similarity between two research papers, a more effective strategy would compare and align (via local-weighting) individual important words (keywords) within a pair of abstracts, while information from other words (e.g., stop words) that tend to be less relevant can be effectively ignored (down-weighted).  We propose to learn a semantic-aware Network Embedding (NE) that incorporates word-level alignment features abstracted from text sequences associated with vertex pairs. Given a pair of sentences, our model first aligns each word within one sentence with keywords from the other sentence (adaptively up-weighted via an attention mechanism), producing a set of fine-grained matching vectors 
 Question: What text sequences are associated with each vertex?
[EX A]: abstracts sentences

[EX Q]: Tourist: I can't go straight any further.

Guide: ok. turn so that the theater is on your right.

Guide: then go straight

Tourist: That would be going back the way I came

Guide: yeah. I was looking at the wrong bank

Tourist: I'll notify when I am back at the brooks brothers, and the bank.

Tourist: ACTION:TURNRIGHT

Guide: make a right when the bank is on your left

Tourist: ACTION:FORWARD ACTION:FORWARD ACTION:TURNRIGHT

Tourist: Making the right at the bank.

Tourist: ACTION:FORWARD ACTION:FORWARD

Tourist: I can't go that way.

Tourist: ACTION:TURNLEFT

Tourist: Bank is ahead of me on the right

Tourist: ACTION:FORWARD ACTION:FORWARD ACTION:TURNLEFT

Guide: turn around on that intersection

Tourist: I can only go to the left or back the way I just came.

Tourist: ACTION:TURNLEFT

Guide: you're in the right place. do you see shops on the corners?

Guide: If you're on the corner with the bank, cross the street

Tourist: I'm back where I started by the shop and the bank.

Tourist: ACTION:TURNRIGHT 
 Question: What language do the agents talk in?
[EX A]:
English