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: Hello. Please read over the information below and create a summary of the following:

The story is set around the turn of the twentieth century, during the British era of colonialism. It begins with Colonel Masters (John Williams, excellent as always portraying a classic stiff-upper-lip British gent) returning home after some time away. He is greeted by his housekeeper, Miss Danton (Shani Wallis) who asks how long he’ll be home to which he replies “that will depend on the whims of the general staff at the colonial office.”

His young niece Monica also lives here and she greets her uncle and excitedly tells him that she has a new doll, which she has with her. When Col. Masters’ eyes glance downward to the doll, his expression changes to one of shock and fear.  When we see the doll, the viewer’s face may do the same, even before hearing the doll’s back story.
Response: At the beginning of the 20th century, British colonial Colonel Masters returns home to his housekeeper, Miss Danton. Monica, his young niece, also lives at the house with Miss Danton and is happy to see her uncle. But when she shows him her new doll, his reaction changes to one of horror and alarm. 

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.

Read the following information and summarize the main points in a concise manner:

A black hole is an extremely dense object in space from which nothing, not even light, can escape. The gravitational pull of a black hole is so strong that it distorts the fabric of space-time itself. Black holes are formed when a massive star runs out of fuel and collapses in on itself, creating an incredibly dense object with an immense gravitational field.

There are two main types of black holes: stellar black holes and supermassive black holes. Stellar black holes are formed from the collapse of individual stars and have masses ranging from a few times to a few dozen times the mass of our Sun. Supermassive black holes, on the other hand, are found at the centers of galaxies and have masses that can be millions or billions of times greater than the Sun's mass.

One of the most fascinating aspects of black holes is the existence of an event horizon, which is the boundary beyond which nothing can escape the black hole's gravitational pull. Any matter or radiation that crosses the event horizon is drawn inexorably towards the center of the black hole, known as the singularity, where the laws of physics as we understand them break down.
user
The passage discusses black holes, which are extremely dense objects in space with immense gravitational pull that distorts space-time itself. They are formed when massive stars collapse inward. There are two main types: stellar black holes formed from individual star collapses, and supermassive black holes found at galactic centers with masses millions of times greater than the Sun. A key feature is the event horizon, the boundary beyond which nothing can escape the black hole's gravitational pull, leading to an inescapable path toward the singularity at the center.
assistant