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: British mountaineer Alison Hargreaves becomes the first woman to climb Mount Everest alone and without oxygen tanks. Sentence 2: A woman succeeds in climbing Everest solo.

1