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]: Experimental Setup 
 Question: what english datasets were used?
[EX A]: Answer with content missing: (Data section) Penn Treebank (PTB)

[EX Q]: We evaluate our method on IWSLT16 German-English (DE-EN) translation in both directions, WMT15 English-German (EN-DE) translation in both directions, and NIST Chinese-to-English (ZH$\rightarrow $EN) translation. 
 Question: Which languages do they experiment on?
[EX A]: German English Chinese

[EX Q]: We use three datasets for our experiments: IWSLT14 German-English, Turkish-English, and WMT14 English-German. 
 Question: what datasets were used?
[EX A]:
IWSLT14 German-English, IWSLT14 Turkish-English, WMT14 English-German