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: What are the key parts and facts in this article on the Athletics? Keep it to a total of five sentences. I will paste the text for your review:

Oakland A's reach deal to build stadium at Tropicana Las Vegas, per report

For the second time in a month, the Athletics have reached an agreement on a potential new stadium site in Las Vegas. According to the Nevada Independent, the A's have a deal in place with Bally's Corporation to build a "$1.5 billion stadium on a portion of the Tropicana Las Vegas site." As part of the arrangement, Bally's would demolish the Tropicana and build a new hotel-casino across from the stadium.

The A's, for their part, are slated to reduce their desired public funding bill from $500 million to $395 million by pursuing this deal instead of their previous agreement. Although that prior pact was said to be binding, it was later revealed to be contingent on the A's securing the public financing needed to proceed. The A's have yet to present Las Vegas lawmakers with a "concrete" proposal, thus delaying their clearing of that hurdle. 

The Nevada Independent's report notes that the A's intend to to begin construction on their new stadium sometime next year. That would put the stadium in line to be opened in 2027, although construction delays could push that to 2028. Should that come to pass, it would mark the completion of the A's seemingly never-ending journey to land a new ballpark.

The A's lease at the Oakland Coliseum expires after the 2024 season, suggesting that the franchise could relocate to Las Vegas before the new stadium is completed. Under such a scenario, the A's would likely play their home games at a minor-league ballpark, particularly their own Triple-A stadium in Sin City.

The A's are set to become just the second Major League Baseball team in recent times to move across state lines, joining the Montreal Expos. The Expos, of course, relocated to Washington, D.C. ahead of the 2005 season.
Response: The Oakland Athletics are building a new $1.5 billion stadium in Las Vegas on the site of the Tropicana. The property is owned by Bally's and would be razed. In this deal, the A's are requesting only $395 million in public assistance, down from the $500 million previously requested. Construction is projected to begin next year, with stadium completion projected for 2027 or 2028. The A's are expected to relocate to Las Vegas after their current stadium lease expires in 2024.

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.

List the main characters and key aspects of the plot in three sentences based on the following text:

In J.K. Rowling's Harry Potter series, Harry Potter, Hermione Granger, and Ron Weasley are the main characters. The story revolves around their adventures at Hogwarts School of Witchcraft and Wizardry. They work together to combat the dark wizard Voldemort, who aims to control the magical world.
user
The main characters in J.K. Rowling's Harry Potter series are Harry Potter, Hermione Granger, and Ron Weasley. The plot centers on their experiences at Hogwarts School of Witchcraft and Wizardry. Together, they fight against the dark wizard Voldemort, who seeks to dominate the magical world.
assistant