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 British government did not initially purchase the weapon and civilian sales were modest. However the U.S. Civil War began in 1860 and the governments of both the United States and the Confederacy began purchasing arms in Britain. Sentence 2: During the Civil War the government of the United States bought arms from Britain.

1