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.

Sentence 1: Many species of birds in new england fly south for the winter months to find an environment with more food. Sentence 2: When the weather begins to cool off in the fall, the birds fly south to find warm winter weather and plenty of food.
entails

Sentence 1: Four valence electrons can be found in a carbon atom. Sentence 2: Each carbon atom has four valence electrons available to participate in the formation of chemical bonds.
entails

Sentence 1: When blood vessels in the head dilate, a migraine, a severe headache, can occur. Sentence 2: and it improves the ability of blood vessels to dilate, which reduces the likelihood of migraine headache.

entails