Definition: In this task, you're given a statement, and three sentences as choices. Your job is to determine which sentence clearly disagrees with the statement. Indicate your answer as '1', '2', or '3' corresponding to the choice number of the selected sentence.
Input: Statement: Front Square and Parliament Square, dating from the 18th century, are surrounded by the Chapel, Dining Hall, Examination Hall, Reading Room, and anchored by the splendid Campanile. Choices:  1. Parliament Square and Front Square both date back to the 1700s.  2. Parliament Square is similar in design to Front Square.  3. Parliament Square was built during the 20th century. 

3