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: What does this text say in one sentence?

Onceropyga pulchra is a species of moth in the family Zygaenidae. It is found in Australia in south-eastern Queensland and eastern New South Wales.[1]

The length of the forewings is 6.5 mm for males and 8 mm for females. The upperside of the forewings is dark brown with a slightly lighter spot at the end of the cell, distally bordered by a suffusion of blackish scales. The underside is dark grey brown, but slightly lighter medially. The hindwings are blackish on both sides, but slightly lighter basally, with a light brown costal margin.[1]
Response: Onceropyga pulchra, a species of moth found in south-eastern and eastern Australia, has wings between 6.5-8mm in length, is dark and lighter brown with blackish scales on the upperside and dark grey-brown and blackish coloring on the underside.

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:

World War II, which lasted from 1939 to 1945, was the most widespread and deadliest conflict in human history, involving over 30 countries and resulting in more than 70 million fatalities, both military and civilian. The war was marked by significant events including the Holocaust, where six million Jews were systematically exterminated by Nazi Germany. The conflict began with the invasion of Poland by Germany, followed by the formation of alliances and a series of battles across Europe, Africa, and Asia. The United States entered the war after the Japanese attack on Pearl Harbor in 1941. The war concluded with the Allied forces' victory over the Axis powers and the dropping of atomic bombs on the Japanese cities of Hiroshima and Nagasaki.
      
user
World War II (1939-1945) was the deadliest conflict in history, involving over 30 countries and resulting in 70 million deaths, marked by major events like the Holocaust and the atomic bombings of Hiroshima and Nagasaki.
assistant