TASK DEFINITION: You are given two sentences. You have to find if there is entailment or agreement of the Hypothesis by the Premise. From the given pair of sentences, you should identify if there is enough information in the Premise to support the claim made in the Hypothesis. The Premise may not exactly be the same as Hypothesis. Your task is to return 'entails' if the premise supports hypothesis else return 'neutral'.
PROBLEM: Premise: The chemical energy of foods is most often expressed in units of calories or kilocalories (kcal). 
 Hypothesis: A calorie is used to express the amount of energy in food.

SOLUTION: entails

PROBLEM: Premise: This rod-like strucxture is the notochord, the progenitor of the backbone or vertebral column. 
 Hypothesis: Backbone is another name for the vertebral column.

SOLUTION: entails

PROBLEM: Premise: Having three chambers, the amphibian heart is rather unusual in that it has two atria and only a single ventricle. 
 Hypothesis: There are three chambers in an amphibian heart.

SOLUTION:
entails