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: Source text:
Elizabeth was born on 21 April 1926, the first child of Prince Albert, Duke of York (later King George VI), and his wife, Elizabeth, Duchess of York (later Queen Elizabeth The Queen Mother). Her father was the second son of King George V and Queen Mary, and her mother was the youngest daughter of Scottish aristocrat Claude Bowes-Lyon, 14th Earl of Strathmore and Kinghorne. She was delivered at 02:40 (GMT)[1] by Caesarean section at her maternal grandfather's London home, 17 Bruton Street in Mayfair.[2] The Anglican Archbishop of York, Cosmo Gordon Lang, baptised her in the private chapel of Buckingham Palace on 29 May,[3][b] and she was named Elizabeth after her mother; Alexandra after her paternal great-grandmother, who had died six months earlier; and Mary after her paternal grandmother.[5] She was called "Lilibet" by her close family,[6] based on what she called herself at first.[7] She was cherished by her grandfather George V, whom she affectionately called "Grandpa England",[8] and her regular visits during his serious illness in 1929 were credited in the popular press and by later biographers with raising his spirits and aiding his recovery.[9]

Summarization request:
Given the details about Queen Elizabeth's early life and background provided in the source text, summarize the key details about her birth and family for me in about 3 sentences.
Response: Elizabeth was born on April 21, 1926, to Prince Albert, Duke of York, and Elizabeth, Duchess of York. She was delivered by Caesarean section at her maternal grandfather's London home and baptized by the Anglican Archbishop of York, Cosmo Gordon Lang. Her name was chosen to honor her mother, her paternal great-grandmother, and her paternal grandmother.

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.

Source text:
There are different approaches to summarization, each with its own strengths and limitations. One common method is extractive summarization, which involves selecting and combining the most relevant sentences or phrases from the original text to create a summary. This technique is relatively straightforward and can be automated using algorithms that analyze the text and identify significant sentences based on factors like word frequency, position within the text, and the presence of keywords.

Another approach is abstractive summarization, which involves generating entirely new sentences that capture the essence of the original text. This method requires a deeper understanding of the content and often involves techniques such as natural language processing and machine learning. Abstractive summarization can produce more concise and coherent summaries but is generally more complex and challenging to implement.

Summarization request:
Briefly compare and contrast extractive and abstractive summarization techniques, highlighting their respective advantages and disadvantages in two to three sentences.
user
Extractive summarization involves selecting and combining relevant sentences from the original text, offering a straightforward and easily automatable approach. In contrast, abstractive summarization generates new sentences to capture the essence of the text, providing more concise and coherent summaries but requiring advanced natural language processing and machine learning techniques, making it more complex to implement.
assistant