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: Sum these three sentences up into one. 

A Scottish ultra-marathon runner was disqualified from a race after she used a car during part of the marathon route before taking home the trophy for third place.

Joasia Zakrzewski acknowledged that she made a “massive error” in accepting the trophy during the GB Ultras Manchester to Liverpool 50-mile race on April 7, BBC Scotland reported.

The record-setting runner told the outlet that she was feeling sore and started limping when she saw a friend on the side of the course who offered to give her a lift.
Response: A Scottish ultra-marathon runner named Joasia Zakrzewski was disqualified, even after accepting a trophy for third place, due to having used a car for part of the marathon route.

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 the following text: The human brain is a remarkably complex organ that gives rise to our intelligence, emotions, memories, and consciousness. It consists of billions of interconnected neurons that transmit signals through electrical and chemical means. At the core of the brain lies the cerebrum, the largest portion, which is divided into two hemispheres. Each hemisphere controls the opposite side of the body and is responsible for various cognitive functions such as reasoning, language, and perception. The cerebellum, located at the back of the brain, is primarily involved in coordinating voluntary movements and maintaining balance and posture. The brain stem, which connects the brain to the spinal cord, regulates vital functions like breathing, heart rate, and sleep cycles.
user
The brain is a complex organ made up of billions of neurons that enable various functions like intelligence, emotions, memory, and consciousness. It consists of the cerebrum (responsible for cognition), cerebellum (for movement and balance), and brain stem (for regulating vital functions).
assistant