You will be given a definition of a task first, then some input of the task.
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'.

Sentence 1: Tyson, who served three years in jail for rape in the 1990s and who bit off part of Evander Holyfield's ear during a 1997 fight, still thinks he can be heavyweight champion again. Sentence 2: Mike Tyson bit Holyfield's ear in 1990.
Output:
0