Definition: In this task, you're given a statement and three sentences as choices. Your job is to determine the neutral choice based on your inference from the statement and your commonsense knowledge. The neutral choice is a sentence that neither agrees nor disagrees with the statement. Indicate your answer as '1', '2', or '3', corresponding to the choice number of the selected sentence. If sentence X agrees with sentence Y, one's correctness follows from the other one. If sentence X disagrees with sentence Y, they can not be correct at the same time.
Input: Statement: Sadly, although the tree has been proved to be among the oldest in Europe, most experts believe that it is only 2,000 years old and therefore not of Hippocrates's era. Choices: 1. This tree is from the era of the Roman empire. 2. Though there is evidence that the tree is one of the oldest in Europe, it is believed that it is not old enough to have been from Hippocrates' era. 3. There is no evidence to show that this tree is among the oldest in Europe.

1