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: Streamline the wording of this text:

The awesome thing about these bracelet patterns is that they are adjustable and customizable, so they easily fit all wrist sizes and you can add your own twist to the design! Just by using different colors of thread, you can get a whole new look.

These friendship bracelets are a fun project for kids of all ages and adults too! It’s a fun craft activity you can do together with best friends, sisters, mom, grandma and more.
Response: These friendship bracelet patterns are customizable so they can fit any size wrist and can be of any design or color for different looks. They are a fun project for all ages!

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.

Summarize this information: The human brain is an incredibly complex organ responsible for all of our thoughts, movements, and behaviors. It is composed of around 86 billion neurons, which communicate with each other via synapses. This neural communication network enables us to perform a vast array of functions, from basic survival instincts to higher cognitive processes such as reasoning, memory, and creativity. Understanding the brain remains one of the greatest scientific challenges, with researchers continually uncovering new insights into how it works.
user
The human brain, with its 86 billion neurons, controls thoughts, movements, and behaviors through a complex neural network. It remains a key focus for scientists seeking to understand its functions and processes.
assistant