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 examine the information below and summarize the goals set forth by President John F. Kennedy.

We set sail on this new sea because there is new knowledge to be gained, and new rights to be won, and they must be won and used for the progress of all people. For space science, like nuclear science and all technology, has no conscience of its own. Whether it will become a force for good or ill depends on man, and only if the United States occupies a position of pre-eminence can we help decide whether this new ocean will be a sea of peace or a new terrifying theater of war. I do not say the we should or will go unprotected against the hostile misuse of space any more than we go unprotected against the hostile use of land or sea, but I do say that space can be explored and mastered without feeding the fires of war, without repeating the mistakes that man has made in extending his writ around this globe of ours. 

There is no strife, no prejudice, no national conflict in outer space as yet. Its hazards are hostile to us all. Its conquest deserves the best of all mankind, and its opportunity for peaceful cooperation may never come again. But why, some say, the moon? Why choose this as our goal? And they may well ask why climb the highest mountain? Why, 35 years ago, fly the Atlantic? Why does Rice play Texas? 

We choose to go to the moon. We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too. 
Response: President John F. Kennedy shared several goals about the space race with the audience. He spoke of the goals of exploring space without going to war with other nations and not repeating the past mistakes made on Earth. The President asked the rhetorical question of why mankind should go to the moon. He answers that the goal of reaching the moon fulfills the challenge of overcoming the hardships and difficulties associated with that task.

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.

Please summarize the key concepts discussed in the following text about the theory of evolution:

The theory of evolution by natural selection, proposed by Charles Darwin in the 19th century, is a unifying principle in biology that explains the diversity of life on Earth. It states that all species are descended from common ancestors and have gradually evolved over time through the process of natural selection. Natural selection is the gradual process by which biological traits that are advantageous for survival and reproduction become more common in successive generations, while deleterious traits become less common. This process occurs due to the presence of variation within populations, with individuals possessing favorable traits having a higher chance of survival and reproducing more offspring. Over many generations, these inheritable traits accumulate, leading to the emergence of new species that are better adapted to their environment. Evolution is driven by several key mechanisms, including mutations, gene flow, genetic drift, and sexual selection. The theory of evolution is supported by extensive evidence from various fields, including paleontology, biogeography, comparative anatomy, embryology, and molecular biology.
user
The key concepts discussed are: 1) The theory of evolution by natural selection explains the diversity of life on Earth and was proposed by Charles Darwin. 2) It states that all species descend from common ancestors and have gradually evolved over time. 3) Natural selection is the process by which advantageous biological traits become more common, while deleterious traits become less common. 4) This occurs due to variation within populations and the higher reproductive success of individuals with favorable traits. 5) Over generations, these inheritable traits accumulate, leading to the emergence of new species adapted to their environment. 6) Evolution is driven by mechanisms like mutations, gene flow, genetic drift, and sexual selection. 7) The theory of evolution is supported by extensive evidence from various scientific fields.
assistant