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: Citybuses also go to Shenzhen. Choices:  1. There are no bus routes to Shenzhen. 2. City bus is the most efficient way to get to Shenzhen. 3. Another way to get to Shenzhen is by city bus.

1