Premise: "Four firefighters in yellow helmets direct a hose."\nHypothesis: "Firefighters are trying to put out a fire."\nDo we know that the hypothesis entailed by the premise?
Let's be accurate as possible and think first.
it is not possible to tell
A firefighter that directs a hose does not have to be trying to put out a fire.

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The final answer: it is not possible to tell