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: Aeschylus is often called the father of Greek tragedy; he wrote the earliest complete plays which survive from ancient Greece. He is known to have written more than 90 plays, though only seven survive. The most famous of these are the trilogy known as Orestia. Also well-known are The Persians and Prometheus Bound. Sentence 2: The Persians was written by Aeschylus.

1