Definition: 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'.
Input: Sentence 1: Article 19 said a correspondent for the independent newspaper Narodnaya Volya who attempted to determine how many people involved in emergency work in the contaminated zone around the Chernobyl nuclear reactor after the 1986 catastrophe were still alive was told by the Ministry of Emergencies that non-state newspapers could be refused access to any information. Sentence 2: The catastrophe at Chernobyl happened in 1986.
Output:
1