In this task, we ask you to write an answer to a question that involves “event duration", based on a given sentence. Here, event duration is defined as the understanding of how long events typically last. For example, “brushing teeth”, usually takes a few minutes. Note that a lot of the questions could have more than one correct answer. We only need a single most-likely answer. Please try to keep your "answer" as simple as possible. Concise and simple "answer" is preferred over those complex and verbose ones.

Ex Input:
Sentence: The postwar period began, however, with millions of displaced people homeless and starving. 
Question: How long did the postwar period last?

Ex Output:
5 years.


Ex Input:
Sentence: A statue, by James Earle Fraser, was dedicated on May 17, 1923, on the south terrace of the Treasury Building, in Washington. 
Question: How long did it take to make the statue?

Ex Output:
a month.


Ex Input:
Sentence: The 300-millimeter silicon wafers -- about the size of a standard pizza -- are shuttled around the facility in enclosed plastic pods, which ride on overhead tracks. 
Question: For how long do the wafers ride on tracks?

Ex Output:

5 hours.


