Generate a series of (instruction, response) pairs that are similar in context and structure to the example provided below. Each pair should consist of a concise instruction followed by an appropriate, detailed response. The instruction should pose a clear task or question, while the response should provide a comprehensive answer or solution that could be understood by someone with a basic understanding of the subject.

Example pair: 
Instruction: Summarize what the author likes about the product they are reviewing. 

What I Love About the Old Navy Fitted Linen-Blend Tie-Shoulder Cropped Cami
This cropped cami is incredibly versatile, making it a go-to choice for effortless outfits. The adjustable tie-shoulder straps and smocked back ensure the perfect fit without feeling constricting. Another great thing about it is the material is thick and not see-through at all. Shoppers agree: "It's thick enough that you don't have to wear a bra with it," one reviewer wrote. Another said it's made of "thick material that is both comfortable and breathable but doesn't show through." Finally, the details are on point. From the sweetheart neckline to the meticulously seamed front bodice reminiscent of a boned corset, it exudes sophistication without sacrificing comfort.
Response: The cropped cami from Old Navy is versatile. It features adjustable tie-shoulder straps and a smocked back to ensure the ideal fit without feeling constricting. It is also made from thick material that is both comfortable and breathable.

Your task is to generate more pairs that maintain this level of clarity and detail. The topic is Summarization. Write a long text of instruction by yourself, then summarize the given instruction in a response. Ensure that the responses are informative and accurate, suitable for an educational context. 

Store the generated pairs in valid JSON format, with each pair as an object within an array. Each object should have two key-value pairs: "instruction" and "response". For instance: 

{"contents": [{"instruction": "text", "response": "text"}, {"instruction": "text", "response": "text"}, ...]} 

Remember to maintain consistency in the format and ensure the generated pairs are diverse and cover a broad range of subjects. You must return the response in the asked format and you must not add any additional text in your response.

Explain the core benefits of using renewable energy sources.
user
Renewable energy sources reduce greenhouse gas emissions, decrease air pollution, and provide sustainable energy supplies. They help combat climate change and improve public health by minimizing harmful pollutants.
assistant