TASK 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.
PROBLEM: Sentence 1: In weather terms, the boundary between two air masses is called front. Sentence 2: In weather, all fronts are boundaries    between masses of air with different densities, usually caused by temperature    differences.

SOLUTION: entails

PROBLEM: Sentence 1: You call a substance that cannot be separated into smaller pieces, which is also defined by the number of protons it has, a(n) element. Sentence 2: Elements are pure substances that are made up of a single kind of atom (atoms with the same number of protons) and cannot be separated into different substances by ordinary chemical methods.

SOLUTION: entails

PROBLEM: Sentence 1: In the human body, the intersection where the paths for air and food cross is called pharynx. Sentence 2: It's like a highway junction where the routes that take air to the lungs and food to the stomach intersect in a common chamber, the pharynx.

SOLUTION:
entails