Given the task definition, example input & output, solve the new input case.
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: Sentence: Jack played basketball after school, after which he was very tired. 
Question: How long did Jack play basketball?
Output: 1 hour.
Typically we play basketball for a couple of hours. So any answer in that range is reasonable.

New input case for you: Sentence: He ran all around the pond, barking at the ducks. 
Question: How long was he barking at the ducks?
Output:
for a few minutes.