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.

Example Input: Sentence 1: When blood vessels in the head dilate, a migraine, a severe headache, can occur. Sentence 2: During the headache phase of a migraine attack, there is dilation of the blood vessels surrounding the cerebral nerve endings.
Example Output: entails

Example Input: Sentence 1: You call the lightless part of the ocean aphotic zone. Sentence 2: The aphotic zone is below the level of effective light penetration, and represents a majority of the ocean's volume.
Example Output: entails

Example Input: Sentence 1: You call a pure substance that cannot be broken down into different types of substances a(n) element. Sentence 2: An element is a substance that cannot be chemically divided into a simpler substance.
Example Output:
entails