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: But facts were facts, and the numbers were screaming X all the way.

SOLUTION: Plural

PROBLEM: The center Elder finished what sounded like an ancient proverb.

SOLUTION: Singular

PROBLEM: The duel is at sunrise in the cemetery.

SOLUTION:
Singular