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 region above 90 km is the Earth's thermosphere where the absorption of extreme ultraviolet radiation from the Sun results in a very rapid increase in temperature with altitude. 
 Hypothesis: As altitude rises, the temperature increases in the thermosphere.

SOLUTION: entails

PROBLEM: Premise: environmental factors and interactions among microbes as structuring forces in natural communities; 
 Hypothesis: Community interactions are important factors in natural selection.

SOLUTION: neutral

PROBLEM: Premise: The valves open to allow blood to flow through, and they close to prevent the backflow of blood (the flow of blood back into the chamber that the blood just came from). 
 Hypothesis: Heart valves prevent the backflow of blood from happening in the heart.

SOLUTION:
entails