user: Give me a few key facts from the paragraph below

assistant: The North Atlantic Treaty Organization (NATO) was established on April 4, 1949. As a military alliance, it serves as a unified defense organization for its member countries. For example, it served as a check against Russia during the Cold War. NATO has 31 member countries today.

user: Who was in control of the four occupation zones as per the above passage?

assistant: the United States, the United Kingdom, France and the Soviet Union.

user: Based on this paragraph about dogs, what is a companion dog?

assistant: A companion dog is a dog that provides only companionship as a pet, rather than usefulness by doing specific tasks.