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.

[Q]: Because our approach is specifically intended to yield sentences that are grammatical, we additionally consider the following log ratio (i.e., the grammatical phrase over the ungrammatical phrase): 
 Question: How do they measure grammaticality?
[A]: by calculating log ratio of grammatical phrase over ungrammatical phrase


[Q]: In this paper, we present an extraction-then-synthesis framework for machine reading comprehension shown in Figure 1 , in which the answer is synthesized from the extraction results. We build an evidence extraction model to predict the most important sub-spans from the passages as evidence, and then develop an answer synthesis model which takes the evidence as additional features along with the question and passage to further elaborate the final answers. 
 Question: Which framework they propose in this paper?
[A]:  extraction-then-synthesis framework


[Q]: Therefore, we decided to compile our own corpora based on English documents, which we crawled from different publicly accessible sources. 
 Question: Do they report results only on English data?
[A]:
Yes