Teacher: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'.
Teacher: Now, understand the problem? Solve this instance: Sentence 1: Not counting the 1986 catastrophe at Chernobyl, where the nuclear reactors are of a different design, the industry has so far succeeded. Sentence 2: The catastrophe at Chernobyl happened in 1986.
Student:
1