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: In 2-3 sentences, summarize these paragraphs about the Shanghai Dragons.

Here are the paragraphs I'm referring to.

Around this time last year, the professional Overwatch team Shanghai Dragons had just finished up a history-making 0-40 season. At the time, nobody would have expected that just one year later they’d be leaving the league’s top three teams in a heap of black-and-blue bodies on the ground. Maybe they should change their name to the Shanghai Phoenixes.

Overwatch League season two’s third stage culminated in a mini-tournament over the weekend with hundreds of thousands of dollars on the line. Shanghai Dragons came out on top. They had the hardest possible path to this championship: They barely made it into the stage finals as the eighth seed, and then they took out the league’s three best teams—New York Excelsior, Vancouver Titans, and San Francisco Shock—back to back to back.
Response: Last season, the Shanghai Dragons finished a shockingly awful 0-40 season. This year, the Dragons just won a mini-tournament against some of the league's top teams. The Dragons entered the stage finals as the eighth seed before knocking out the Excelsior, Titans, and Shock in three straight games.

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 following text about the different types of text summarization:

Text summarization can be broadly categorized into two main types: extractive and abstractive summarization.

1. Extractive summarization: This approach involves selecting and extracting the most important sentences or phrases from the original text to form the summary. The summary is constructed by concatenating these extracted segments without modifying the original text. Extractive summarization techniques often rely on statistical and linguistic features to determine the importance of sentences or phrases, such as word frequency, position, and presence of cue words.

2. Abstractive summarization: In this approach, the summary is generated by understanding the meaning and context of the original text and then producing new sentences that capture the essence of the content. Abstractive summarization involves rephrasing and restructuring the information using advanced natural language generation techniques. This type of summarization is more challenging than extractive methods, as it requires a deeper understanding of the text and the ability to generate coherent and fluent summaries.

Within these two broad categories, there are further variations and approaches, such as query-based summarization, which focuses on generating summaries tailored to specific user queries or topics, and multi-document summarization, which involves summarizing information from multiple sources.

The choice of summarization technique depends on factors like the nature of the text, the desired level of compression, and the specific requirements of the application. In practice, hybrid approaches that combine elements of extractive and abstractive methods are often employed to leverage the strengths of both techniques.
user
The text outlines two main types of text summarization: extractive and abstractive. Extractive summarization involves selecting and concatenating important sentences or phrases from the original text, while abstractive summarization generates new sentences that capture the essence of the content. It also discusses variations like query-based and multi-document summarization. The choice of technique depends on factors like text nature, compression level, and application requirements, with hybrid approaches combining extractive and abstractive methods being common.
assistant