TASK DEFINITION: In this task you are given a sentence. You must judge whether the object of the main clause is singular(like: apple) or plural(like: apartments). Label the instances as "Singular" or "Plural" based on your judgment.
PROBLEM: I had enough self-control to keep from punching the police.

SOLUTION: Singular

PROBLEM: The demon paid no heed to his words.

SOLUTION: Singular

PROBLEM: He ground the two coins against each other in his closed hand, knocking his knuckles against the single coin in his pocket.

SOLUTION:
Plural