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: In the early hours of April 15, 1912, the British luxury liner Titanic sank in the North Atlantic off Newfoundland, less than three hours after striking an iceberg. Sentence 2: The Titanic sank in 1912.

1