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: Write a short summary of the passage.

This is the passage:
The most famous description of Valhalla in Old Norse literature, that of Grímnismál, portrays it as being located in Asgard, the gods’ celestial fortress.

However, other lines of evidence suggest that it was at least sometimes seen as being located underground, like the more general underworld.
Response: Grímnismál is the most famous portrayal of Valhalla, locating it in Asgard, but other theories say it was underground.

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.

Provide an example summary of the following short article on how to give an effective presentation: 

An effective presentation requires preparation and practice. First, define your key message and desired outcome. Next, create an outline with an introduction, main points, and conclusion. Gather relevant visuals, but avoid cluttering your slides with too much text. During the presentation, maintain eye contact with the audience and speak clearly at an appropriate pace. Monitor your body language and avoid distracting movements or excessive reliance on notes. Finally, practice your delivery until you are comfortable with the material and timing.
user
This article outlines tips for giving an effective presentation. Key points include: defining your message, creating an outline with visuals, practicing delivery with proper pacing and body language, and avoiding over-reliance on notes.
assistant