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 this in 30-50 words. 

Why should learning be collaborative?
Collaborative learning is a method of active learning that relies on the principle of two or more students working together, towards a common goal. These activities vary widely, but most centre on the learner’s exploration or application of the curriculum, not simply on the teacher’s point of view.

Collaborative learning arms pupils with the confidence to teach and learn from their peers and teachers, too. In primary schools especially, collaborative learning will help develop soft skills at an earlier age, helping children become more effective communicators.

The differences between collaborative learning and cooperative learning can be interchangeable for educators, however, collaborative learning encourages students to make individual progress in tandem with others. Co-operative learning, meanwhile, promotes accountability with interdependence. Find out more about the benefits of collaborative learning.
Response: Collaborative learning involves two or more students working together towards a common goal. This active learning method has children explore and apply the curriculum while communicating and learning from each other, giving them confidence. Collaborative learning encourages individual progress, while cooperative learning encourages accountability with interdependence. 

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.

Summarize the contributions of Albert Einstein to science in 30-50 words.
user
Albert Einstein revolutionized science with his theories of relativity, explaining the relationship between space, time, and gravity. His famous equation, E=mc², transformed our understanding of energy and mass, earning him the Nobel Prize and profoundly impacting modern physics.
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