
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] Then, on [**2598-12-1**], head CT showed a stroke on the right, less than one-half of the hemisphere, thus it was decided to start him on low dose heparin gtt and coumadin with a goal PTT 40-50. [HYP]  The patient has a history of atrial fibrillation  
OUTPUT:

entailment contradiction neutral