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 thought you would develop the photos and maybe even take doubles, which makes sense because then I get my pictures, which is what I'm here to pay for.

SOLUTION: Right, well as it's laid out in the contract and the contest rules, we're to keep all for the next 20 years.

PROBLEM: Mr. Nelson saw the snake too.

SOLUTION: But it did not talk. It just said s'es.

PROBLEM: This is going to be the greatest play of all time.

SOLUTION:
You're saying like we're going to get play ratings through the roof.