Given the task definition and input, reply with output. 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'.

Premise: Spherical Aberration, Where the surface of a convex lens in not perfectly spherical and all the rays of light do not focus at the same point. 
 Hypothesis: Convex lenses are thicker in the middle than at the edges so they cause rays of light to converge, or meet, at a point called focus.
neutral