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: When light passes from one medium to another, it changes speed. Sentence 2: The light beam passing from a medium where it goes at one speed, c 1 , into a second medium where it goes at a different speed, c 2 , will always take the path of least time.

entails