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: When I hit the ground I heard my ankle snap.

SOLUTION: Singular

PROBLEM: He had four blades, but I had forgotten one of his weapons.

SOLUTION: Plural

PROBLEM: Chris and Duff continued their classes and hoped that the police would arrest someone soon.

SOLUTION:
Plural