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.

When we took out a section of the wall, it revealed a spiral staircase leading down to a cellar or dungeon. "
Singular

He lit a few candles, feeling the sting of the headache receding.
Plural

He steered the Tahoe to the shoulder of a peaceful country road, lined by acres of trees and cornfields.

Singular