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: One of the men took his reins and another began talking to him.

SOLUTION: Plural

PROBLEM: Scarlett finally lowered her rifle and relaxed, feeling as if the tiger had just been caged.

SOLUTION: Singular

PROBLEM: Agent Locke held out a thick legal file, the accordion bottom stretched to capacity and then some.

SOLUTION:
Singular