Teacher: Given the prompt and a response, classify the them to "yes" if response is "yes, and" type. Otherwise classify it as "no". "Yes, and" is a rule-of-thumb in improvisational comedy that suggests that a participant in a dialogue should accept what another participant has stated ("Yes") and then expand on that line of thought or context ("and..."). 1 In short, a "Yes, and" is a dialogue exchange in which a speaker responds by adding new information on top of the information/setting that was constructed by another speaker. Note that a "Yes, and" does not require someone explicitly saying 'yes, and...' as part of a dialogue exchange, although it could be the case if it agrees with the description above. There are many ways in which a response could implicitly/explicitly agree to the prompt without specifically saying 'yes, and...'. 
Teacher: Now, understand the problem? If you are still confused, see the following example:
Prompt: I'm glad you came into my office today, young man. Look around you. Everything that's in here, I purchased. 
 Response: Wow! You own everything in this office?
Solution: yes
Reason: This is correct answer because response is in support with the prompt and extends the context from prompt.

Now, solve this instance: Prompt: I'm Julius Caesar. And who might you be? 
 Response: No, the play must be performed to the satisfaction of every race in the galaxy, a nigh impossible task.
Student:
no