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: Binary compounds such as tungsten carbide or boron nitride can be very refractory. 
 Hypothesis: Binary compounds of carbon with less electronegative elements are called carbides.

SOLUTION: neutral

PROBLEM: Premise: The Sun, which is at the center of the solar system, is 100 times bigger than the Earth. 
 Hypothesis: The sun is the center of our solar system.

SOLUTION: entails

PROBLEM: Premise: Isolated system A system in which neither  matter nor energy is exchanged with the surroundings. 
 Hypothesis: A sealed, vacuum-insulated reaction flask approximates the condition of a isolated system, in which neither matter nor heat can be exchanged between system and surroundings.

SOLUTION:
entails