Problem: Given the question: Answer this question: what caused the world war 2?
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The answer is:
The main causes of World War II were nationalistic issues, unresolved issues, and resentments resulting from World War I and the interwar period in Europe, in addition to the effects of the Great Depression in the 1930s.

Problem: Given the question: Answer this question: where did the persian war take place?
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The answer is:
The actions of the general Pausanias at the siege of Byzantium alienated many of the Greek states from the Spartans, and the anti-Persian alliance was therefore reconstituted around Athenian leadership, as the so-called Delian League .

Problem: Given the question: Answer this question: how do you know if something is the golden ratio?
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The answer is:
In mathematics and the arts , two quantities are in the golden ratio if the ratio of the sum of the quantities to the larger quantity is equal to the ratio of the larger quantity to the smaller one.