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.
--------
Question: Sentence: The target remained in Indianapolis Center's airspace for another six minutes, then crossed into the western portion of Washington Center's airspace at 9:10. 
Question: How long did it take for them to detect the target?

Answer: ten minutes.


Question: Sentence: They are able to study the DNA of the organism that no longer lives on Earth. 
Question: How long did it take to study the DNA?

Answer: three years.


Question: Sentence: Usually when they play the game, Billy answers the telephone in a loud voice, and Sally answers the telephone in a quiet voice. 
Question: How long does the game last?

Answer:
30 minutes.


