Explain the key differences between extractive and abstractive summarization techniques, and provide examples of scenarios where each approach might be more suitable:

Extractive summarization is a technique that selects and concatenates the most important sentences or phrases from the original text to create the summary. This approach preserves the original wording and structure of the source material. It is particularly useful for summarizing factual information, such as news articles or technical reports, where preserving the original language and terminology is important. For example, an extractive summary of a scientific paper might include verbatim sentences from the abstract, introduction, and conclusion sections to convey the key objectives, methods, and findings.

Abstractive summarization, on the other hand, generates entirely new sentences that capture the key points of the original text in a condensed and reformulated manner. This approach requires a deeper understanding of the source material and the ability to paraphrase and synthesize the core ideas. Abstractive summaries are often more concise and coherent than extractive summaries, as they can restructure the information in a more natural and fluent way. This technique is particularly useful for summarizing subjective or narrative content, such as literary works or opinion pieces, where capturing the essence and tone of the original text is more important than preserving the exact wording. For instance, an abstractive summary of a novel might capture the main plot points, character arcs, and themes in a concise and compelling manner.
Explain the key differences between extractive and abstractive summarization techniques, and provide examples of scenarios where each approach might be more suitable:

Extractive summarization is a technique that selects and concatenates the most important sentences or phrases from the original text to create the summary. This approach preserves the original wording and structure of the source material. It is particularly useful for summarizing factual information, such as news articles or technical reports, where preserving the original language and terminology is important. For example, an extractive summary of a scientific paper might include verbatim sentences from the abstract, introduction, and conclusion sections to convey the key objectives, methods, and findings.

Abstractive summarization, on the other hand, generates entirely new sentences that capture the key points of the original text in a condensed and reformulated manner. This approach requires a deeper understanding of the source material and the ability to paraphrase and synthesize the core ideas. Abstractive summaries are often more concise and coherent than extractive summaries, as they can restructure the information in a more natural and fluent way. This technique is particularly useful for summarizing subjective or narrative content, such as literary works or opinion pieces, where capturing the essence and tone of the original text is more important than preserving the exact wording. For instance, an abstractive summary of a novel might capture the main plot points, character arcs, and themes in a concise and compelling manner.
user
The key difference between extractive and abstractive summarization is that extractive summarization selects and concatenates important sentences from the original text, preserving the original wording, while abstractive summarization generates new sentences to capture the key points in a reformulated manner. Extractive summaries are suitable for factual content like news articles or reports, where preserving terminology is important. Abstractive summaries are better for subjective or narrative content like novels, where capturing the essence and tone matters more than exact wording.
assistant
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: Tell me in a sentence or two what this text says about Nirvana.

Nirvana was an American rock band formed in Aberdeen, Washington, in 1987. Founded by lead singer and guitarist Kurt Cobain and bassist Krist Novoselic, the band went through a succession of drummers, most notably Chad Channing, and then recruited Dave Grohl in 1990. Nirvana's success popularized alternative rock, and they were often referenced as the figurehead band of Generation X. Their music maintains a popular following and continues to influence modern rock culture.
Response: Nirvana was a Washington-based rock band formed in 1987 by Kurt Cobain and Krist Novoselic, with Chad Channing and Dave Grohl being the most notable drummers. They are often cited as an influencer of modern rock culture.

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.
