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'.

Example Input: Sentence 1: Saudi Arabia, the biggest oil producer in the world, was once a supporter of Osama bin Laden and his associates who led attacks against the United States. Sentence 2: Saudi Arabia is a key U.S. ally.
Example Output: 0

Example Input: Sentence 1: It was difficult to assess the objectives behind increased militia activity in East Timor, but its intent seemed to be to continue a pattern of violence against civilians and the United Nations Transitional Administration in East Timor (UNTAET) in order to undermine the transition process, Hedi Annabi, Assistant Secretary-General for Peacekeeping Operations, told the Security Council this morning. Sentence 2: Guerrillas increase activity in East Timor.
Example Output: 1

Example Input: Sentence 1: After two years, the aspirin subjects experienced a reduced risk of fatal and nonfatal stroke. Sentence 2: People experienced adverse effects while taking aspirin.
Example Output:
0