Definition: In this task, you are given two statements. The task is to output whether a given textual premise, i.e. Statement 2, entails or implies a given scientific fact, i.e. Statement 1. The output should be 'entails' if Statement 2 supports Statement 1 and should be 'neutral' otherwise.
Input: Sentence 1: Blood enters the heart in atria valve. Sentence 2: During an episode of AF, the heart muscle does not contract as it normally does to force open the heart valve through which blood passes from the atrium to the ventricle.

neutral