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: Please use 2 sentences to summarize the information about watercolor paint. 

Watercolor Painting
Watercolor painting is also popular and can be done by beginners, however, it does require a little more skill to do it properly. The paint is usually transparent and contains a pigment and a binder. These paints are water-based, so they are safe to use, and you can clean up by simply using water. Watercolor paper is what you would use to paint on.

Watercolors are considered a little unforgiving if you have made a mistake as it dries fairly quickly, but there are a few methods you can use to fix mistakes. For example, you can reactivate the paint using a wet brush. You can use various watercolor techniques to create various painting styles, from landscapes to portraits and more.
Response: Watercolor painting is a popular painting method that allows for a variety of painting styles using water-based and transparent paint with a pigment and a binder. Watercolor paints dry quickly but can be reactivated by a wet brush.

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 main concepts of Newton's First Law of Motion in two sentences.
user
Newton's First Law of Motion states that an object will remain at rest or move in a straight line at constant speed unless acted upon by an external force. This principle, also known as the law of inertia, explains how objects behave in the absence of applied forces.
assistant