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: Give me a tl;dr on the following text, please. 

If you find a surprise nest, leave it be. “You’re not supposed to mess with it,” says avian ecologist Caren Cooper from North Carolina State University. The Migratory Bird Treaty Act of 1918, a federal law, protects roughly 1,100 native bird species, including eggs and nests. The list includes wrens, finches, phoebes, hummingbirds, doves, killdeer, and robins—all species that often nest around homes.
Response: According to ecologists, you shouldn't touch a found bird nest. The 1918 Migratory Bird Treaty Act protects over 1,000 native birds, eggs, and nests found around homes.

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 process and purpose of the human digestive system. 

The human digestive system is responsible for breaking down food into nutrients, which the body uses for energy, growth, and cell repair. The process begins in the mouth, where food is chewed and mixed with saliva to break it down into a form that can be absorbed. It then travels down the esophagus to the stomach, where stomach acids and enzymes further break down the food. The partially digested food moves into the small intestine, where most nutrient absorption occurs. The remaining waste products proceed to the large intestine, where water is absorbed, and the waste is eventually excreted through the rectum. The digestive system is essential for converting food into the energy and nutrients necessary for bodily functions.
user
The human digestive system breaks down food into absorbable nutrients for energy, growth, and repair. Starting in the mouth, food passes through the esophagus, stomach, small intestine, and finally the large intestine for waste excretion.
assistant