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: Would you like to see the Disney vault?

SOLUTION: Yes, it's like Christmas!

PROBLEM: Doug, we've had some complaints about your work lately.

SOLUTION: They're wrong. Unless they say I'm too good.

PROBLEM: Listen, the salesman is going to be getting on this train to go get married.

SOLUTION:
So, he'll be stepping up onto the train and he'll be riding it.