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: Why are people upset with law enforcement for events surrounding the death of Jordan Neely? Please summarize in one sentence.

Here is text to use: 
The death of a homeless man who allegedly had threatened passengers aboard a New York City subway and was put into a chokehold by one of the riders has been deemed a homicide, according to the medical examiner.
Investigators had said they were waiting on the report to determine whether or not it was the chokehold that killed 30-year-old Jordan Neely at the Broadway-Lafayette station Monday afternoon. However, no charges have yet been filed against the 24-year-old passenger who put Neely in headlock.
Some are now calling for justice for Neely, who was homeless and struggled with mental illness, and the the person who was initially hailed as a good Samaritan to be arrested."What we're seeing is people deputizing themselves and not having a compassionate approach to mental health and homelessness," said one of the speakers at a rally — held at the same station where the altercation occurred, and where EMS performed CPR on Neely after a witness said he was restrained for 15 minutes.
The NYPD said it was called to the NoHo station around 2:25 p.m. after a report of a physical fight in a northbound F train.
Witnesses and law enforcement sources said Neely got on the train and started acting very aggressively toward other riders, threatening to harm them. Police sources told NBC New York that Neely told riders on the train that he wanted food, that he wasn't taking no for an answer, and that he would hurt anyone on the train.
"The man got on the subway car and began to say a somewhat aggressive speech, saying he was hungry, he was thirsty, that he didn't care about anything, he didn't care about going to jail, he didn't care that he gets a big life sentence," said Juan Alberto Vazquez, who was in the subway car and recording part of what happened afterward. "That 'It doesn't even matter if I died.'"
Response: Groups believe that the man who put Jordan Neely in a chokehold went without consequences due to a lack of empathy for the homeless and mentally ill.

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.

What is the impact of plastic pollution on marine life? Please summarize in one sentence.
user
Plastic pollution adversely impacts marine life through ingestion, entanglement, and habitat disruption, leading to health issues and mortality in aquatic species.
assistant