TASK DEFINITION: In this task you are given a sentence. You must judge whether subject of the main clause is singular or plural. Label the instances as "Singular" or "Plural" based on your judgment.
PROBLEM: Suddenly, the Tom Cat veered in another direction.

SOLUTION: Singular

PROBLEM: Her tutor never even knew the difference.

SOLUTION: Singular

PROBLEM: If Gage is from Washington D.C., then everything Dax suspects could very well be true.

SOLUTION:
Plural