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: He was defeated at the famous Battle of Marathon in 490 b.c. , and ten years later his son Xerxes lost the Persian fleet at the Battle of Salamis. Choices: 1. His son, Xerxes, regained the Persian fleet ten years after he lost the Battle of Marathon.  2. Xerxes lost the Persian fleet to the same group that defeated his father at the Battle of Marathon.  3. Xerxes lost the Persian fleet ten years after his father's defeat at the Battle of Marathon. 

2