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: The Romans took control of Petra in a.d.106, and they too have left their legacy. Choices:  1. Petra has been conquered by many civilizations.   2. Petra was conquered by the Romans in A.D.106. 3. Petra was never taken over by the Romans.  

3