You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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.

Sentence: Jack played basketball after school, after which he was very tired. 
Question: How long did Jack play basketball?
Solution: 1 hour.
Why? Typically we play basketball for a couple of hours. So any answer in that range is reasonable.

New input: Sentence: The dermis also contains hair follicles and two types of glands. 
Question: How long does the dermis take to heal after a minor injury to it?
Solution:
3 days.