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: My sneakers let off an admittedly adorable perky sound as I marched back over to the sidelines.

SOLUTION: Plural

PROBLEM: Three hundred acres, that's a big place, lots of places to get lost.

SOLUTION: Plural

PROBLEM: Another bump nearly sent him back to the floor.

SOLUTION:
Singular