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: Create a summary that explains why Austalian Shepards are not the pet for everyone. 

The Australian Shepherd, a lean, tough ranch dog, is one of those 'only in America' stories: a European breed perfected in California by way of Australia. Fixtures on the rodeo circuit, they are closely associated with the cowboy life. The Australian Shepherd, the cowboy's herding dog of choice, is a medium-sized worker with a keen, penetrating gaze in the eye. Aussie coats offer different looks, including merle (a mottled pattern with contrasting shades of blue or red). In all ways, they're the picture of rugged and agile movers of stock. Aussies exhibit an irresistible impulse to herd, anything: birds, dogs, kids. This strong work drive can make Aussies too much dog for a sedentary pet owner. Aussies are remarkably intelligent, quite capable of hoodwinking an unsuspecting novice owner. In short, this isn't the pet for everyone. But if you're looking for a brainy, tireless, and trainable partner for work or sport, your search might end here.
Response: While Australian Shepards are known as a great breed, they are not the perfect pet for everyone for two main reasons: Their strong work drive means they need a lot of exercises, and because of their intelligence, Aussies have been known to pull one over on a novice dog owner. 

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.

Outline the impact of the Industrial Revolution on urbanization.
user
The Industrial Revolution greatly accelerated urbanization by shifting jobs from agriculture to industry, leading people to move from rural areas to cities. This migration resulted in rapid city growth, the development of infrastructure, and changes in social structures. While it stimulated economic growth, it also brought challenges like overcrowding, pollution, and inadequate housing.
assistant