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: We also did the first open heart surgery and the stop light sign.

SOLUTION: Why? Why would they let us perform open heart surgery?

PROBLEM: Oh, I forgot you told me this when it happened.

SOLUTION: Yes, you were there with me.

PROBLEM: I'm a latch key kid. I don't even have baby sitters. I just have myself.

SOLUTION:
I'm a latch key kid too. A first generation latch key kid.