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.

Q: Sentence: She later adopted the stage name Fontaine -- the name of her mother's second husband. 
Question: How long was her mother married to her second husband?

A: they were married for 10 years.
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Q: Sentence: This aversion to war also led Einstein to befriend author Upton Sinclair and film star Charlie Chaplin, both noted for their pacifism. 
Question: How long did Einstein befriend the authors?

A: till the night he died.
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Q: Sentence: The leaders of the Department of Homeland Security now appear before 88 committees and subcommittees of Congress. 
Question: How long do the appearances last?

A:
less than a day.
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