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: Demetrius, I am getting nervous. I don't know where chuck has gone. Ever since he went to that haunted house last night, I haven't seen him anywhere.

SOLUTION: I wish you would stop asking about him. You're married to me now.

PROBLEM: I don't understand why they keep us up high. Why are we always on the fifth floor of this place and can never go down?

SOLUTION: There's no elevator or stairs in this place.

PROBLEM: You know, I'm a little worried. It's a pretty wide river, and it's getting deep.

SOLUTION:
Yeah it is. It's getting deeper with the rain, isn't it?