instruction:
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'.
question:
Premise: These pigments usually are red in acid solution and may become purplish to blue if the pH of the cell sap is increased. 
 Hypothesis: As ph increases, a solution becomes more basic.
answer:
neutral


question:
Premise: The trees are evergreen as there is no period of drought or frost. 
 Hypothesis: Because trees add water vapor to air, cutting down forests leads to longer periods of drought.
answer:
neutral


question:
Premise: Fermat also stated that Light follows a path that minimizes total travel time . 
 Hypothesis: Fermat’s principle states that light will always take the path of the least amount of time.
answer:
entails