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: Cuban Leader Fidel Castro sent a letter to United Nations Secretary-General Kofi Annan assuring him that Cuba will follow anti-terrorism treaties in the wake of last month's terrorist attacks against New York and Washington. Sentence 2: Castro visits the UN.
Example Output: 0

Example Input: Sentence 1: The human species may be more than 100,000 years old but the bulk of its numerical growth has come in just the last few decades: 2.6 billion of today's 5.6 billion people have been born since 1960. Sentence 2: The world population is 5.6 billion.
Example Output: 1

Example Input: Sentence 1: While preliminary work goes on at the Geneva headquarters of the WTO, with members providing input, key decisions are taken at the ministerial meetings. Sentence 2: The WTO headquarters are located in Geneva.
Example Output:
1