TASK DEFINITION: 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.
PROBLEM: Sentence: Allan crouched over his desk once more, pen in hand and mind blank. 
Question: How long did it take for Allan to crouch over his desk?

SOLUTION: a few seconds.

PROBLEM: Sentence: After the second World Trade Center crash, Boston Center managers recognized that both aircraft were transcontinental 767 jetliners that had departed Logan Airport. 
Question: How long did it take Boston Center managers to recognize the jetliners?

SOLUTION: an hour.

PROBLEM: Sentence: Eventually, the shelter received word that the alleged hijacker 5 miles away had been a medevac helicopter. 
Question: How long did it take the shelter to get information?

SOLUTION:
10 hours.

