In this task, you're given two sentences. Indicate if the first sentence clearly entails the second sentence (i.e., one can conclude the 2nd sentence by reading the 1st one). Indicate your answer with '1' if the first sentence entails the second sentence, otherwise answer with '0'.

[EX Q]: Sentence 1: World health officials warned yesterday that West Africa and Central Africa were on the verge of the worst polio outbreak in years, stemming from the refusal of a single state in northern Nigeria to vaccinate children against the disease. Sentence 2: African polio outbreak feared
[EX A]: 1

[EX Q]: Sentence 1: Our best evidence is that the crustal magma chamber is filling with molten rock. But we have no idea how long this process goes on before there either is an eruption or the inflow of molten rock stops and the caldera deflates again, added Smith. Volcanic activity in Yellowstone heats up underground water which create geysers of superheated water, and is responsible for the creation and continuous eruption of Old Faithful. Sentence 2: There is a volcano in Yellowstone.
[EX A]: 1

[EX Q]: Sentence 1: Chinese Premier, Zhu Rongji, and German Chancellor, Gerhard Schroeder, opened the world's first commercial magnetic levitation (maglev) train yesterday, with both sides having much to gain from its success. Sentence 2: Both Mr. Schroeder and Mr. Zhu have much to gain if maglev succeeds.
[EX A]:
1

