Ask a reasonable question about the input sentence, please ask about the person, time, event, thing or causality in the sentence, and then use the original information in the original sentence to answer the corresponding question. If there is no corresponding answer in the original sentence, please regenerate a new question that does not repeat the previous question according to the previous requirements, and use the original information in the original sentence to answer the corresponding question. Output in the format "question:answer:".
Sentence: Although she had been warned about the dangerous conditions, she decided to go hiking anyway. Wrap the entire output in JSON format.
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