
TASK: Please classify the relationship between the given premise and hypothesis into one of the following labels: entailment, contradiction, or neutral. Return only the label.
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INPUT: [PRE] The patient's chest x-ray on admission was negative, and a magnetic resonance imaging/magnetic resonance angiography done showed no acute infarction and no flow changes in the arteries. [HYP]  The patient had an acute stroke. 
OUTPUT:

entailment contradiction neutral