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.

Statement: The resulting pools, terraces, and petrified waterfalls of dazzling white travertine are one of Turkey's most famous sights. Choices: 1. The formations of white travertine are laid down by running water. 2. Turkey is famous for its natural formations of white travertine. 3. Turkey has some impressive natural formations, but none of them are made of white travertine.
3