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: SIGHAN Bakeoff defines two types of evaluation settings, closed test limits all the data for learning should not be beyond the given training set, while open test does not take this limitation BIBREF21. 
 Question: What is meant by closed test setting?

A: closed test limits all the data for learning should not be beyond the given training set, while open test does not take this limitation
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Q: Non-contextual properties of a word. These features are derived directly from the word and capture the general tendency of a word being echoed in explanations. 
 Question: What non-contextual properties do they refer to?

A: These features are derived directly from the word and capture the general tendency of a word being echoed in explanations.
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Q: We have collected total 3500 questions from the Internet and other sources such as books of general knowledge questions, history etc. The corpus contains the questions and the classes each question belongs to. 
 Question: what datasets did they use?

A:
Dataset of total 3500 questions from the Internet and other sources such as books of general knowledge questions, history, etc.
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