In this task, you will be presented with a context from an academic paper and a question based on the context. You have to classify the questions into "Extractive", "Abstractive", or "Yes-no" questions. Extractive questions can be answered by concatenating extracts taken from a context into a summary while answering abstractive questions involves paraphrasing the context using novel sentences. Yes-no question is a question whose expected answer is one of two choices, one that affirms the question and one that denies the question. Typically, the choices are either yes or no.

Example Input:  The flexibility of the DNN model allowed us to include many more surface level features such as affixes, leading and trailing characters in words and stems, and the presence of words in large gazetteers of named entities. As we show later, these additional features significantly lowered CEER. 
 Question: what surface-level features are used?
Example Output: Extractive

Example Input: 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?
Example Output: Abstractive

Example Input: We present two use cases on which Seshat was developped: clinical interviews, and daylong child-centered recordings. 
 Question: Did they experiment with the tool?
Example Output:
Yes-no