TASK DEFINITION: Given the sentence, generate "yes, and" response. "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...'. 
PROBLEM: I want to make another wish.

SOLUTION: OK, because I forgot what the first ones were.

PROBLEM: Well then who's ordering the new thimbles?

SOLUTION: Jeez, I could order some more thimbles for you.

PROBLEM: Why are you saying no? I haven't even touched you yet.

SOLUTION:
I'm sorry. I'm just thinking of something. I have to go lay down. I've got one of my headaches.