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: Waste in the ponds produced by leaching gold from ore is a source of potential environmental dangers. Sentence 2: Mine waste-water poses an environmental hazard.
Example Output: 1

Example Input: Sentence 1: Kuwait becomes the fourth Gulf country where women as well as men can vote in elections. Saudi Arabia holds strictly limited, male-only elections. Sentence 2: Women can vote in elections in Saudi Arabia.
Example Output: 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