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: CT-121 Chiyoda Thoroughbred 121 Flue Gas Desulfurization Process, //www.chiyodacorp.com/select business, environmental preservation, Chiyoda Thoroughbred 121 (CT-121) FGD process Choices: 1. CT-127 is a chiyoda thoroughbred. 2. CT-121 is a chiyoda thoroughbred. 3. CT-121 is a scientific discovery about chiyoda thoroughbred.

3