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: Read the following: 

If a Spanish class were to go on an in-country immersion in Spain, they’d be flooded by the sights and sounds of native speakers going about their business. Good times! But that would make a huge dent in everybody’s budget. So why not bring a native speaker to class instead?

Pick somebody who’s outgoing, a natural extrovert who loves interacting with people and doesn’t take himself too seriously. Ask him to prepare a short talk. And he can really talk about anything—so long as he does it in Spanish. He can tell his personal story, talk about his job or share some interesting quirk about his culture.

You may be a native speaker yourself, but count yourself out. Bring some new face to stand in front of the class. (There’s just something more effective about a fresh face.)

Now, please summarize what it says about having a native speaker visit the classroom.
Response: Bringing a native speaker into the classroom can help immerse students in a foreign language. Invite a guest speaker who is outgoing, extroverted, and has something interesting to share. 

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.

The following is an excerpt from a book on the history of the printing press:

The invention of the printing press in the 15th century by Johannes Gutenberg marked a significant turning point in the spread of knowledge and ideas. Prior to this revolutionary technology, books had to be painstakingly transcribed by hand, making them rare and accessible only to the elite. The printing press allowed for the mass production of books, enabling wider dissemination of information to the general public. This paved the way for the Renaissance, the Reformation, and the Scientific Revolution by democratizing access to written works and facilitating intellectual discourse.

Produce a concise summary highlighting the key points about the historical impact of the printing press.
user
The invention of the printing press by Johannes Gutenberg in the 15th century revolutionized the spread of knowledge and ideas. It enabled mass production of books, making written works more widely accessible beyond the elite. This democratization of information facilitated intellectual discourse and major historical events like the Renaissance, Reformation, and Scientific Revolution.
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