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: Ocean acidification (OA) is the process by which anthropogenically derived atmospheric carbon dioxide (CO2) is absorbed into surface seawater, lowering the pH and concentration of carbonate ions in the global ocean (Caldeira and Wickett 2003 ; Doney et al. 2009 ). 
 Hypothesis: Ocean acidification occurs when excess carbon dioxide in the atmosphere causes the oceans to become acidic.
answer:
entails


question:
Premise: The heart in this defect has four chambers, two normal valves, two valves which are abnormal, and two large holes in the heart. 
 Hypothesis: There are four valves in the heart.
answer:
entails


question:
Premise: The lens focuses light rays. 
 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.
answer:

neutral