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: The discovery is based on velocity measurements of a whirlpool of hot gas orbiting the black hole. Sentence 2: Hubble discovers black holes.

0