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: Mrs. White, what else to you draw veins on?

SOLUTION: I add veins to birds, trees, tortoises, my own hands and feet and legs.

PROBLEM: Did you get new shoes, Mr. Tumnus?

SOLUTION: Kind of. I painted my hooves to look like little sneakers.

PROBLEM: You never had an ounce of remorse?

SOLUTION:
I had.  I had a tablespoon of I'm sorry about it, but that's as far as it went.