Input: Sentence 1: The attitude expressed by Emperor Qianlong at Britian's first attempt to open trade with China in 1793 continued to   We possess all things,  said the emperor,  I set no value on objects strange or ingenious, and have no use for your country's manufactures.  Sentence 2: Britain first attempted to open trade with China in the 1400's and was accepted.
Output: 

 yes