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.

Example Input: Sentence: Then the green ball told the orange ball that blue ball was stupid. 
Question: How long was the green ball talking to the orange ball?
Example Output: 15 seconds.

Example Input: Sentence: In this case he looks to his girlfriend , Violet . 
Question: How long did it take him to look at Violet?
Example Output: five seconds.

Example Input: Sentence: The Serbian, who beat Tsonga in the 2008 Australian Open final, ended the dream run of Australian 18-year-old Bernard Tomic. 
Question: How long did it take for the Serbian to beat Tsonga?
Example Output:
3 hour.

