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'.

Example Input: Sentence 1: The solar system is much more complicated now, astronomers say, than in 1930 when Clyde Tombaugh added Pluto to the inventory of wandering lights circling the Sun. Sentence 2: Pluto was discovered by Clyde Tombaugh.
Example Output: 1

Example Input: Sentence 1: On opening day Salesforce.com's stock was up $6.20 to $17.20, a 56.4% increase over the initial offering price of $11. Sentence 2: Opening day of the stock of Salesforce.com rose 56.4% over the initial offering price.
Example Output: 1

Example Input: Sentence 1: To write "The Persians," which opens Thursday at the Aurora Theatre in Berkeley, Ellen McLaughlin spent six days. Given the direction of U.S. foreign policy, McLaughlin says, the lessons of "The Persians" are particularly crucial today, 2,500 years after it was written. Sentence 2: The Persians was written by Aeschylus.
Example Output:
0