as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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generate 3 ideas for a new invention.
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1. a portable solar-powered device that can charge any electronic device.
2. a 3d-printed turbine generator that can generate electricity from the wind.
3. a water filtration system that can be used to purify water on the go.
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