Definition: "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..."). Given a prompt and two responses, identify which response is the type of "yes, and". Indicate your answer by 'Response 1' if the first response is correct, otherwise 'Response 2'.  Note that a "Yes, and" does not require someone explicitly saying 'yes, and...' as part of a dialogue exchange.
Input: Prompt: I didn't realize those boxes would be so heavy. I didn't know what was inside the boxes. 
 Response 1: We don't either. All we know is they're heavy boxes and they gotta be moved from here to over there. 
 Response 2: Put on a happy smile and try your darndest.

Response 1