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 summarize the major details from this body of text in 2-3 sentences.

COVID-19 prevented Burrow from flashing his NFL-ready attributes after LSU's pro day was canceled. He and many of his national champion teammates opted not to work out at the NFL scouting combine, citing a need to recharge after the Tigers played into mid-January before vanquishing Clemson. 

Now? Burrow says he just looks for "whatever patch of grass I can find around town" to throw on before retreating into his basement to play video games.

"Super crazy," he admitted. "Super weird."

But he also acknowledges it wouldn't be crazy or weird to play for the lowly Bengals (2-14 last season), who are based roughly two hours and 15 minutes from Burrow's doorstep in Athens, which is in the southeastern portion of Ohio.

With ample time to consider his future, he's even pondered how he'd win over a veteran locker room, something he did with ease at Baton Rouge, according to his LSU teammates – while often relying on a less-is-more approach.
Response: Burrow and his LSU teammates weren't able to participate in a pro day after LSU's had to be canceled due to COVID-19, nor did the LSU QB take part in the NFL combine. Burrow seems comfortable with playing for the Cincinnati Bengals, although he has been thinking about how he can win over a locker room filled with NFL veterans.

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 principle of supply and demand covered in several pages of an economics textbook.
user
The principle of supply and demand states that the price of a good is determined by its availability (supply) and the desire of buyers (demand). When demand exceeds supply, prices rise; conversely, when supply exceeds demand, prices fall.
assistant