Given the prompt and a response, classify the them to "yes" if response is "yes, and" type. Otherwise classify it as "no". "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...'. 

Prompt: We have an account with....I'm not supposed to say. It's an agency. 
 Response: We are police. Police that are out on the street in uniforms with cars.
yes

Prompt: You said a snake ate your string cheese. 
 Response: There was a snake in there, but snakes ain't got no hands! You gotta pull the string cheese apart.
yes

Prompt: That doesn't mean you got any business, you were a prostitute but I was hoping and I pray as a 12 1/2 year old you didn't do any business. 
 Response: They said "we're prostitutes" and so, we just stood around and looked at each other. So I was a prostitute for like an hour.

yes