What is a Noun?
A noun names a person, place, thing, activity or idea.
Central European Countries

Tell me about World War II leaders.
World War II AXIS leaders were: Hitler of Germany, Tojo of Japan and Mussolini of Italy.
World War II Allied leadders were: Churchilll of England, Roosevelt, Eisenhower, and MacArthur of the United States, and Stalin of the USSR.
Area of a square.
The area of a square equals length of its side squared.
A = s2
What is Newton’s second law of motion?
Newton’s second law of motion states that force equals mass times acceleration.
F = ma