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: 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.
entails

Sentence 1: The atom in a neutron is found in the the nucleus. Sentence 2: The atom is composed of a heavy nucleus consisting of neutrons and protons.
entails

Sentence 1: Memory t cells are long-lived and can even persist for lifetime long. Sentence 2: has long-term effects, perhaps with lifetime persistence;

neutral