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"I want a caption that expresses my [emotion] for [event/experience]. Can you help?
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Can you come up with a caption that includes the words [insert keyword/phrase]?
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I want a caption that summarizes my [insert experience/adventure]. Can you create one?
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Be specific about the tone or emotion you want to convey.
Consider the audience: Who will be reading your caption? Write something that will resonate with them.