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: 3 Special requirements for cleaning glassware used in the green alga, Selenastrum capricornutum, toxicity tests (Method 1003. Choices: 1. Special requirements for cleaning glassware is a definite no when it comes to health and safety. 2. Special requirements for cleaning glassware weren't used in the green alga 3. Special requirements for cleaning glassware were used in the green alga

1