Problem: Given the question: Answer this question: where did the persian war take place?
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The answer is:
Seeking to secure his empire from further revolts and from the interference of the mainland Greeks, Darius embarked on a scheme to conquer Greece and to punish Athens and Eretria for burning Sardis.

Problem: Given the question: Answer this question: what are batteries made up of?
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The answer is:
Automotive SLI batteries are usually lead-acid type, and are made of six galvanic cells in series to provide a 12 volt system.

Problem: Given the question: Answer this question: HOW MANY STRIPES ARE ON THE AMERICAN FLAG?
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The answer is:
The national flag of the United States of America , often simply referred to as the American flag, consists of thirteen equal horizontal stripes of red (top and bottom) alternating with white, with a blue rectangle in the canton (referred to specifically as the "union") bearing fifty small, white, five-pointed stars arranged in nine offset horizontal rows of six stars (top and bottom) alternating with rows of five stars.