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: The newcomer turned to us.

SOLUTION: Singular

PROBLEM: Two pairs of filthy, crazed eyes faced me.

SOLUTION: Plural

PROBLEM: The police captain interposed his bulk between the adversaries.

SOLUTION:
Singular