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 heard the diamond turns green when it senses it's going to be stolen. 
 Response 1: That's why we picked a day when it's going to look more hazel, so that people pay less attention to it. Hopefully that won't happen, hopefully it's just an urban myth about the green thing. 
 Response 2: I doubt it. He wasn't around then, right?

Response 1