instruction:
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: At the sight of the great man, Spear flushed crimson, and then his look of despair slowly disappeared; and into his eyes there came incredulously hope and gratitude. 
Question: How long did Spear see the great man?
answer:
a few minutes.


question:
Sentence: So really, that's what many of the people are doing now," he said. 
Question: How long will they be doing that?
answer:
many hours.


question:
Sentence: A floodplain is an area where a thick layer of rich soil is left behind as the floodwater recedes. 
Question: How long does it take for floodwater to recede?
answer:

a week.


