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 short, what does this paragraph say about cleansers? Here is the text:
A mild cleanser: When selecting a cleanser, choose one for your skin type. Dr. Katta says, “For example, if you have acne-prone skin, use a mild cleanser that removes oil.” Dry skin does better with a hydrating cleanser.

To get the best results from your cleanser, wash your face twice a day – when you get up and before bed. You also want to wash after sweating.
Response: It says to choose a cleanser based on your skin type and to wash your face before and after bed and after sweating.

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 key points about understanding text summarization from the following passage:

Text summarization is the process of creating a shorter, concise version of a longer text by selecting and combining the most important information from the source. The goal is to preserve the overall meaning and key details while reducing redundancy and removing unnecessary content. There are two main approaches to text summarization: extractive and abstractive. Extractive summarization involves identifying and extracting the most relevant sentences or phrases from the original text and combining them to form a summary. Abstractive summarization, on the other hand, involves generating entirely new sentences that capture the essence of the source text. This approach requires a deeper understanding of the text and the ability to paraphrase and synthesize information. Both techniques have their advantages and challenges, and the choice depends on factors such as the intended use of the summary, the domain of the text, and the available computational resources.
user
The key points are: 1) Text summarization involves creating a shorter version of a longer text by selecting important information. 2) There are two main approaches: extractive (extracting relevant sentences/phrases) and abstractive (generating new sentences). 3) Extractive summarization is simpler, while abstractive requires deeper understanding and paraphrasing ability. 4) The choice of approach depends on factors like the intended use and available resources.
assistant